Larry Milton Brought $400M To Sanctuary. The Deal Was Built On A 35-Year Relationship.

Wealth Management

Aug 18

Larry Milton spent nearly four decades inside large financial institutions before deciding that the next stage of his career required more control over the business he had built. As first reported in the original InvestmentNews coverage, the Fort Worth, Texas, advisor left Truist Investment Services in 2025 with a team overseeing approximately $400 million in client assets and launched Fossil Rock Private Wealth through Sanctuary Wealth and mFORCE Capital.

The move was not a conventional breakaway in which an advisor left a bank or wirehouse and built every element of a stand-alone RIA from scratch. Milton joined an enterprise already led by Bradley Bruce, a former Merrill Lynch managing director who had spent several years building mFORCE inside Sanctuary. According to the Sanctuary partnership announcement, Milton and Bruce had known one another for roughly 35 years, giving the transaction a professional and personal foundation that long predated either man’s move into independence.

That relationship reduced one of the biggest uncertainties surrounding a late-career breakaway. Milton was not simply evaluating a new platform, technology stack or payout arrangement. He was deciding whether to build the next stage of his business alongside someone whose investment philosophy, leadership style and approach to clients he already knew.

The structure also gave Milton a middle path between remaining an employee and constructing every operating function himself. Fossil Rock could preserve its own client-facing identity while using mFORCE for enterprise scale and Sanctuary for another layer of infrastructure. The combination shows how mature independent firms increasingly can become destinations for other breakaways rather than remaining single-team advisory practices.

TL;DR

Larry Milton left Truist with approximately $400 million in client assets: He launched Fossil Rock Private Wealth in Fort Worth with an existing service team.
Fossil Rock partnered with mFORCE Capital: The practice entered independence through an already established enterprise rather than building every capability from zero.
Milton and Bradley Bruce had decades of history: Their relationship dated back to their Merrill Lynch careers and had lasted roughly 35 years when the transaction was announced.
The move centered on client control: Milton said his team evaluated several options before deciding independence offered the level of control and flexibility they wanted.
mFORCE already had meaningful scale: The enterprise oversaw approximately $1.9 billion before Fossil Rock joined.
The relationship later became more integrated: The current mFORCE leadership profile presents Bruce and Milton as co-founders and reports more than $2.8 billion in assets under management.
Sanctuary provided another layer of infrastructure: Its partnered-independence model gives firms access to technology, operations and growth resources while preserving local ownership and branding.
The larger strategy goes beyond one breakaway: Enterprise partner firms such as mFORCE can recruit or partner with other advisors and effectively become local consolidators inside a national platform.

The 35-Year Relationship Reduced Breakaway Risk

Milton and Bruce had known each other for roughly 35 years when the deal was announced, with their relationship dating back to their Merrill Lynch days. Bruce had already left the employee model and built mFORCE into a $1.9 billion independent enterprise, while Milton had spent 37 years working through large financial institutions before deciding that independence offered the control he wanted over the client experience.

The Sanctuary partnership announcement emphasized that history because it distinguished the transaction from a typical recruiting relationship. Bruce was not simply pitching Milton on an affiliation model. He could speak from firsthand experience about leaving a large institution, establishing an independent business and operating through Sanctuary after the transition.

That type of relationship capital can matter when an advisor is considering a move involving clients, staff, technology and long-term enterprise value. A new platform may look attractive on paper, but the advisor still has to trust the people making decisions once the launch is over.

A Familiar Partner Can Shorten The Learning Curve

A breakaway advisor usually has to assess a new leadership team while simultaneously working through account transfers, staffing decisions and client communication. Milton already knew the executive leading the enterprise he was joining, which removed one layer of uncertainty from the transition.

The relationship also could help after launch. Business partnerships eventually involve decisions about expenses, hiring, acquisitions, succession and strategy, and familiarity with a partner’s decision-making style can make those conversations more predictable.

A decades-long relationship does not guarantee that a business partnership will work. It does, however, give the parties a much deeper starting point than most advisor recruiting transactions.

Fossil Rock Chose A Layered Form Of Independence

The Fossil Rock launch announcement described the new practice as an independent wealth firm operating in partnership with mFORCE and supported through Sanctuary Wealth. The structure allowed Fossil Rock to focus on successful individuals, business owners and multigenerational families while relying on larger partners for portions of the operating and wealth-management infrastructure.

That model is important because advisor independence no longer has one definition. Some advisors build completely stand-alone RIAs, while others use custodians, supported-independence firms, broker-dealers or larger enterprise partners to handle selected functions.

Milton chose a structure that preserved a distinct local brand without requiring Fossil Rock to reproduce every capability available inside a national institution.

Three Layers Supported The New Firm

Structure

Primary Role

Strategic Value

Fossil Rock Private Wealth

Milton’s client-facing practice

Preserves local identity and control of the client relationship

mFORCE Capital

Enterprise partner

Adds scale, shared expertise and established operating experience

Sanctuary Wealth

National independence platform

Provides broader technology, operational and growth infrastructure

The arrangement shows that independence can be built through partnership rather than isolation. The advisor can determine which capabilities should remain inside the local firm and which are more efficient to obtain through larger organizations.

That flexibility can be especially valuable to veteran advisors who want greater control but do not want to spend the next stage of their careers becoming technology, compliance or operations managers.

Milton Wanted More Control Over A More Complex Client Base

Milton’s decision was tied closely to the way he wanted to serve clients. The Sanctuary announcement said his team considered several options and models before concluding that independence would provide greater control over its future and client experience.

The team also wanted to expand capabilities around family-office services, business-owner planning and broader wealth-management needs. Those priorities fit a practice serving affluent and multigenerational households because the planning requirements often extend beyond portfolio construction.

Milton’s current profile within the mFORCE organization continues to emphasize business owners, affluent individuals, foundations, endowments and multigenerational families. The broader firm also positions itself as a multifamily-office enterprise rather than merely an investment-management business.

High-Net-Worth Advice Requires More Than Portfolio Management

A wealthy family may need investment management alongside estate coordination, lending, philanthropy, business planning and next-generation education. Business owners can add another layer of complexity because much of their wealth may remain concentrated in a privately held company until a sale or succession event.

An advisor serving those relationships may eventually want greater control over which specialists, lenders and planning resources are assembled around the client. Supported independence can create that flexibility without requiring the local team to own every capability directly.

For Milton, the move therefore was not simply about leaving Truist. It was about creating a structure capable of supporting a broader client proposition.

The related NJ Financial News analysis of advisor independence models explains why this distinction increasingly matters. Advisors are choosing among several forms of independence based on how much control they want and how much infrastructure they prefer a larger partner to provide.

The Existing Team Helped Preserve Client Continuity

Milton did not make the transition alone. Robert “Bobby” Brown joined Fossil Rock as senior wealth advisor, while Erin Smith and Linda Castle continued in client-service roles.

Keeping an established service team can reduce disruption because clients often interact with several people inside a wealth practice. Associates handle account questions, paperwork, money movement and follow-up, while secondary advisors can participate in planning and relationship management.

A move that preserves those relationships may feel less disruptive than one where the lead advisor changes firms and clients simultaneously have to learn an entirely new service team.

Client Relationships Are Often Team Relationships

The size and complexity of modern wealth practices make team continuity increasingly important. A senior advisor overseeing hundreds of millions of dollars cannot personally handle every service request or operational detail.

That turns staff portability into an important part of breakaway execution. Advisors considering independence have to determine whether key employees are willing to move and whether the new organization can support them with the technology and operating structure they need.

Fossil Rock entered the new model with a functioning team rather than beginning as a one-person practice and building outward after the transition.

mFORCE Had Already Solved Many Of The First-Mover Problems

Bruce founded mFORCE after leaving Merrill and had built the enterprise to approximately $1.9 billion before Milton arrived. Sanctuary also described Bruce as an important participant in developing its Enterprise Partner Program, which was designed to help established partner firms recruit, acquire and expand.

That history changed the economics of Milton’s move.

He was not joining another advisor who was still learning how to operate independently. He was entering a business that already had several years of experience working through Sanctuary, maintaining a local brand and supporting affluent clients outside the wirehouse environment.

The Second Breakaway Can Reuse The First Firm’s Infrastructure

A mature independent enterprise may already have experience with:

client transitions,
staff compensation,
custodial workflows,
technology selection,
compliance processes,
local operations,
branding,
banking and lending relationships,
specialized planning resources,
and recruiting.

Milton could therefore build on systems and lessons mFORCE had already developed.

That is one reason mature independent firms can become increasingly powerful recruiting competitors. Once the first breakaway establishes functioning infrastructure, the next advisor no longer needs to solve every start-up problem independently.

mFORCE Has Become More Integrated Around Bruce And Milton

The current mFORCE leadership profile provides useful hindsight on how the relationship evolved after Fossil Rock launched. The firm now presents Bruce and Milton as co-founders, describes their friendship as spanning more than 36 years and reports more than $2.8 billion in assets under management.

That presentation is more integrated than the original launch structure, when Fossil Rock was described as a separate entity operating under the mFORCE umbrella. The Fossil Rock identity remains relevant, but Milton is now positioned more prominently inside the larger enterprise.

mFORCE’s current messaging also centers on high-net-worth and ultra-high-net-worth families, business owners, philanthropy and multigenerational planning. That suggests the original breakaway developed into a broader enterprise partnership rather than remaining a lightly connected affiliation.

The Asset Base Continued Expanding

At the time of the Fossil Rock launch, mFORCE was described as overseeing approximately $1.9 billion while Milton’s team brought another $400 million in client assets. The current mFORCE website reports more than $2.8 billion in AUM.

Those figures should not be used to calculate precise organic growth because the earlier announcements and current website do not necessarily use identical asset definitions. They do show that the combined enterprise remained substantial after the transaction and continued developing beyond the original launch.

For advisors evaluating similar partnerships, that continuity matters more than launch-day enthusiasm. A successful structure needs to remain useful after client accounts have moved and the transition team is gone.

Enterprise Partners Can Become Recruiting Engines

Fossil Rock also illustrates a broader part of Sanctuary’s growth strategy. The national platform does not need every recruit to join through the same centralized relationship if successful partner firms can attract other advisors themselves.

mFORCE already had scale, a local reputation and firsthand breakaway experience. Those characteristics allowed Bruce to offer Milton something different from a traditional national recruiter: a functioning independent enterprise that could serve as a destination.

Sanctuary’s Enterprise Partner Program was designed around that idea. Existing firms can use national infrastructure to recruit, acquire and develop locally while preserving their own branding and leadership.

Successful Advisors Can Become Enterprise Builders

The model can progress through several stages:

An experienced advisor leaves a large institution and launches independently.
The practice builds enough scale to develop its own operating infrastructure.
Other advisors begin viewing the business as an established platform rather than an individual practice.
The enterprise recruits or partners with additional teams.
Shared infrastructure spreads across a larger revenue and asset base.
The founding advisor increasingly becomes a business builder as well as a producer.

mFORCE had already reached that later stage when Fossil Rock joined.

Another example can be seen in NJ Financial News’ coverage of Alluvial’s Ohio expansion, where an existing Sanctuary enterprise used the same broader infrastructure to add another advisor and expand regionally.

Local Trust Can Strengthen A National Recruiting Platform

National wealth firms can offer substantial resources, but advisor recruiting remains highly relationship-driven.

An advisor may understand Sanctuary’s technology and platform economics yet still place significant weight on the people who will be closest to the practice after the move.

Enterprise partners can bridge that gap.

Bruce could speak with Milton not only about Sanctuary’s formal capabilities but about his own experience leaving Merrill, launching mFORCE and operating within the system for several years.

Peer Experience Can Carry More Weight Than Marketing

A prospective breakaway often wants answers to questions that formal presentations cannot fully address. The advisor may want to know how clients responded, what went wrong during the transition, how quickly the home office solves problems and whether the promised flexibility remains after the recruiting process ends.

An advisor who already made the move can answer those questions from lived experience.

Milton’s decades-long relationship with Bruce strengthened that dynamic further because the peer reference was not someone he had met during recruiting. It was someone whose business judgment he already knew.

That kind of trust can become a competitive advantage for larger enterprise firms looking to recruit other veteran advisors.

Sanctuary Continues Expanding The Partnered-Independence Model

Sanctuary’s broader network has continued growing since Fossil Rock joined. The firm reported more than 125 partner firms across 32 states and more than $55 billion in assets on or transitioning to the platform in early 2026.

Its later first-half growth update said the network added approximately $5.9 billion in client assets during the first six months of 2026.

Those additions came from advisors leaving several large institutions and included practices ranging from a few hundred million dollars to nearly $2 billion.

The continued flow suggests that supported independence remains competitive even as wirehouses, independent broker-dealers, custodians and RIA aggregators all improve their own breakaway offerings.

More Scale Raises The Service Standard

Sanctuary’s growth can improve its ability to invest in technology, specialist resources and transition support.

Larger scale can also create a risk.

Advisors often choose partnered independence because they want flexibility and direct access rather than the bureaucracy they experienced at larger institutions. If the national network becomes heavily standardized as it expands, the platform could weaken its own recruiting proposition.

The challenge is therefore similar to the one facing mFORCE at a smaller level. Growth needs to create more capability without making the organization feel less personal.

Practice Ownership Changes The Economics Of A Late-Career Move

Milton’s long career makes the breakaway particularly relevant to succession and enterprise value.

An advisor who has spent decades inside employee institutions could reasonably choose stability rather than creating a new business late in a career. Independence introduces transition work and additional operating responsibility at a point when many advisors may already be thinking about retirement.

Ownership can change that calculation.

An independent practice can potentially create transferable enterprise value separate from annual compensation. That value may eventually pass to partners, younger advisors or an outside buyer.

Succession Becomes A Business Decision

Employee advisors often operate within succession programs designed by the institution.

Independent owners can have more control over how ownership eventually transfers, although that control introduces new responsibilities involving valuation, financing and governance.

mFORCE’s current positioning includes development of younger professionals who can support the next generation of the enterprise. For Milton, joining an existing independent organization potentially created more options around eventual continuity than starting an isolated practice with no larger succession framework.

The relationship with Bruce therefore matters beyond the current client book. It potentially affects the long-term ownership of the business Milton helped build.

Business Owners Give The Enterprise A Natural Planning Niche

Milton’s client focus includes entrepreneurs and business owners, a segment that fits naturally inside a multifamily-office model.

Business owners can have significant wealth concentrated in private companies rather than liquid investment accounts. Their financial lives may involve retirement plans, business succession, estate planning, lending and eventual liquidity events.

The Fossil Rock launch announcement emphasized access to planning, investment, banking, lending and estate-related capabilities through the wider partnership.

That gives the enterprise another growth engine beyond recruiting advisor teams.

Business Liquidity Can Deepen Existing Relationships

An entrepreneur may work with an advisor years before selling a company. When that event occurs, the planning relationship can expand dramatically as business value converts into personal liquidity.

The advisor may then need to coordinate investment management, estate planning, philanthropy, tax strategy and family governance.

A platform capable of handling more of those needs can retain the relationship through several stages of the client’s financial life.

For Fossil Rock and mFORCE, that means growth can come from both advisor recruiting and deeper engagement with existing clients.

Client Experience Ultimately Determines Whether The Breakaway Worked

Clients generally care less about the phrase “supported independence” than advisors and recruiters do.

They care whether service remains reliable.

A successful transition should preserve the trusted people in the relationship while improving or at least maintaining the capabilities available to them.

Fossil Rock retained much of Milton’s existing team and gained access to broader infrastructure through mFORCE and Sanctuary. Those factors can reduce disruption, but clients still need clarity about how the new structure works.

Clients Should Understand The New Relationship

Useful questions include:

Where are assets held?
Which RIA provides investment advice?
Which broker-dealer handles securities activity?
Are advisory fees changing?
Does the client need new paperwork or digital credentials?
Can all existing investments transfer?
Which members of the prior service team remain?
What additional planning, lending or family-office capabilities are available?

Those practical issues matter more to most households than the ownership structure itself.

Independence can create more flexibility for the advisor, but the client benefit ultimately depends on whether that flexibility produces better advice, stronger service or broader resources.

mFORCE Now Has A Recruiting Story Beyond Bruce

Before Fossil Rock joined, mFORCE could point to Bruce’s successful move from Merrill and the scale he had built afterward.

Milton’s arrival created a different proof point.

An advisor with 37 years of institutional experience and approximately $400 million in client assets chose to join the enterprise rather than start alone or move to another employee platform.

That gives future recruits another example of how the model can work.

Different Founders Can Speak To Different Recruits

Bruce understands the experience of creating the enterprise from the beginning.

Milton understands what it is like to join an established independent business after spending most of a career inside large institutions.

Those perspectives can appeal to different advisor profiles.

A prospective recruit who wants independence but does not want to become a solo founder may find Milton’s path particularly relevant.

The current mFORCE positioning of both men as co-founders reinforces the idea that the enterprise is larger than one original breakaway story.

Larger Partnerships Also Require Stronger Governance

The advantages of enterprise scale come with additional complexity.

A one-advisor practice can make strategic decisions quickly. A larger organization with several senior partners, teams and locations may need formal governance around ownership, economics, acquisitions and succession.

The public materials reviewed here do not disclose private ownership terms between Milton, Bruce or other mFORCE participants, so those arrangements should not be inferred.

For advisors evaluating comparable partnerships, however, governance should be part of due diligence.

Enterprise Partnerships Require More Than Platform Comparison

Important questions can include:

Ownership: What equity or economic interest does the incoming advisor receive?
Decision-making: Who controls major expenses, hiring and acquisitions?
Branding: Can the practice preserve its own client-facing identity?
Economics: Which expenses remain local and which are shared?
Exit terms: What happens if the partnership eventually no longer fits?
Succession: Can ownership transfer to younger advisors?
Platform dependence: Which relationships belong to the local enterprise and which depend on the national partner?

These issues are materially different from comparing employee compensation packages.

Modern advisor independence increasingly involves enterprise design alongside the traditional platform decision.

The Competition Has Shifted Toward Different Types Of Independence

The wealth industry now offers more paths between employee status and complete stand-alone ownership.

Large broker-dealers have created independent and RIA channels. Custodians and supported-independence firms provide infrastructure to breakaways, while national RIA platforms offer capital, M&A and operational resources.

That means the competitive question is no longer simply whether an advisor wants independence.

It is what degree of independence the advisor wants.

The related NJ Financial News article on advisor independence models examines how firms compete around ownership, infrastructure and platform support rather than using a single definition of independence.

Milton Chose Partnership Rather Than Maximum Separation

Fossil Rock could have attempted to establish a completely stand-alone RIA.

Instead, Milton selected a layered partnership involving mFORCE and Sanctuary.

That suggests his priority was greater control over the client and business experience rather than eliminating every institutional relationship.

For many experienced advisors, that may be the more useful definition.

Independence can mean having the authority to choose the firm’s partners rather than insisting that the practice operate without any partners at all.

The Relationship Worked Because Infrastructure Sat Behind It

The decades-long relationship between Milton and Bruce makes the story memorable, but the personal connection alone could not create a functioning wealth business.

The new enterprise still needed technology, operations, custody, compliance, staff support and specialist resources.

At the same time, infrastructure alone may not have been enough to convince Milton to leave Truist after decades inside major financial institutions.

The transaction combined both elements.

Milton had a trusted enterprise partner and an established national platform behind the move.

That combination reduced several categories of breakaway risk simultaneously.

The Partnership Had To Work Beyond Launch Day

The current mFORCE structure suggests the relationship did continue beyond the transition itself.

Bruce and Milton are now presented jointly as co-founders, the enterprise reports more than $2.8 billion in assets under management and the firm has developed a broader multifamily-office identity.

Those developments provide more useful evidence than the initial recruiting announcement because they show the partnership remained relevant after client accounts moved and the immediate transition period ended.

For advisors evaluating similar structures, durability should be part of the analysis.

What Comes Next For mFORCE

mFORCE is operating at a larger scale than when Bruce first launched the business, which changes the challenges facing the enterprise.

The next stage will require the firm to balance recruiting, organic growth, succession and client-service depth while maintaining the relationships that helped it grow in the first place.

Several indicators will be particularly useful:

Advisor recruiting: Whether mFORCE can continue attracting experienced teams without weakening its culture.
Organic growth: Whether the enterprise expands beyond the client assets originally recruited.
Next-generation development: Whether younger advisors gain meaningful responsibility and future ownership opportunities.
Client-service breadth: Whether the multifamily-office proposition continues deepening beyond investment management.
Governance: Whether the business can remain cohesive as more partners and teams are added.
Sanctuary leverage: Whether national-platform resources continue helping mFORCE scale without forcing excessive standardization.
Succession: Whether the organization creates an ownership structure durable beyond its founding generation.

Those questions become more important as an advisory practice turns into an enterprise.

Bottom Line

Larry Milton’s move from Truist to independence was built on a professional relationship that began long before Fossil Rock, mFORCE or Sanctuary existed. Milton and Bradley Bruce had known each other for roughly 35 years when the transaction was announced, dating back to their Merrill Lynch careers, and that history gave Milton a trusted partner as he prepared to leave the employee model after decades inside large institutions.

The Sanctuary partnership announcement shows that Fossil Rock entered independence through an enterprise that already had scale and experience. Milton brought an approximately $400 million practice and an established service team, while mFORCE already oversaw roughly $1.9 billion and could provide a working operating environment rather than an untested start-up structure.

The model also allowed Milton to avoid a false choice between staying an employee and building every component of an RIA alone. Fossil Rock could maintain a distinct client proposition while mFORCE provided enterprise support and Sanctuary supplied additional national infrastructure.

The arrangement has become more integrated over time. The current mFORCE leadership profile presents Bruce and Milton as co-founders and reports more than $2.8 billion in AUM, while the firm’s current positioning centers on high-net-worth families, business owners, philanthropy and multigenerational wealth.

For mFORCE, Milton’s arrival represented more than an additional $400 million. It showed that a firm created through one successful breakaway could become a destination for another veteran advisor, strengthening the enterprise’s ability to recruit and grow beyond its original founder.

For Sanctuary, the transaction illustrated why enterprise partners can become useful growth engines inside a national independence platform. Successful local firms can recruit other advisors, build regional scale and use Sanctuary’s broader infrastructure without surrendering their identities.

For advisors, the larger lesson is not simply that independence remains attractive. The more important decision is which parts of the advisory business need to be owned directly, which capabilities are better shared and which partners have enough trust and infrastructure to support the business after the recruiting process ends.

Frequently Asked Questions About Larry Milton And Fossil Rock

Why did Larry Milton leave Truist?
Milton said his team evaluated several models before deciding that independence would provide more control over its client experience and future. The move also gave the practice access to broader family-office and business-owner capabilities through mFORCE and Sanctuary.
How large was Milton’s practice when Fossil Rock launched?
Fossil Rock launched with approximately $400 million in client assets. Milton also brought senior wealth advisor Robert Brown and client-service professionals Erin Smith and Linda Castle.
What is the relationship between Fossil Rock and mFORCE?
Fossil Rock originally launched as a distinct practice under the broader mFORCE enterprise. The current mFORCE website now presents Larry Milton and Bradley Bruce as co-founders of the larger organization.
How large is mFORCE today?
The current mFORCE profile reports more than $2.8 billion in assets under management. The firm positions itself as a multifamily office serving affluent and ultra-high-net-worth families, entrepreneurs and multigenerational households.
What does Sanctuary provide to firms such as mFORCE?
Sanctuary provides partnered-independence infrastructure that can include technology, operations, investment resources and growth support. Its model allows partner firms to preserve control over areas such as brand, staffing and the client experience while using larger-platform resources.