The 7 Steps to Transform Your Law Firm Using an MSO Structure.
If you're a managing partner of a personal injury law firm and someone has mentioned that you should consider an 'MSO structure,' you're probably wondering what that actually means—and whether the complexity is worth the effort.
The short answer: it might be one of the most important strategic decisions you make for your firm. An MSO structure allows you to access outside capital, bring in professional management expertise, and create liquidity for yourself—all without violating attorney ethics rules or giving up control of your legal practice.
This post walks through exactly how an MSO works, why it matters, and the seven concrete steps required to implement one at your firm.
What Is an MSO—and Why Does It Exist?
MSO stands for Management Services Organization. It's a legal structure that separates the business operations of your law firm from the legal services your attorneys provide. Think of it as creating two distinct companies:
The Law Firm (technically called a Professional Corporation or PC): This entity remains 100% owned by licensed attorneys. It employs the lawyers, controls all legal work, maintains attorney-client relationships, and makes all decisions about case strategy and fees.
The Management Services Organization (MSO): This entity handles everything that isn't the practice of law—finance, HR, IT, marketing, intake, real estate, and procurement. The MSO can be owned by attorneys and outside investors (including private equity firms).
The two entities are connected through a Shared Services Agreement (SSA), which governs what the MSO does, how much the law firm pays for those services, and how the relationship operates day-to-day.
The MSO structure exists because state bar ethics rules prohibit non-lawyers from owning law firms or sharing in legal fees—but they don't prohibit non-lawyers from owning companies that provide business services to law firms.
Why Would You Want an MSO?
The MSO structure solves three problems that traditional law firm structures cannot:
1. Access to Growth Capital
Traditional law firms are capital-constrained. If you want to invest in better marketing, hire an experienced CFO, upgrade your technology stack, or acquire another firm, you're limited to bank debt (which is expensive and restrictive) or internally generated cash flow (which takes years to accumulate).
An MSO allows outside investors—usually private equity firms or family offices—to inject capital in exchange for equity in the MSO entity. That capital can fund growth initiatives that would be impossible under a traditional structure.
2. Professional Management Without Giving Up Legal Control
Most law firm founders are excellent attorneys but didn't go to law school to become experts in finance, HR, or digital marketing. Running the business side of the firm is often a distraction from the legal work that generates revenue.
The MSO structure allows you to bring in professional executives—a CFO, a COO, a CMO—who can own equity in the MSO (not the law firm) and build world-class operational infrastructure. You keep 100% control of the legal practice while delegating the business functions to people who are actually trained to run them.
3. Liquidity for Founding Attorneys
In a traditional law firm, the only way to realize the value you've built is to sell your ownership stake to junior partners (who usually can't afford to pay full value) or sell the entire firm to another law firm (which rarely produces a premium valuation).
An MSO transaction allows you to sell a portion of the MSO to outside investors at market rates. You get liquidity—real cash, today—while retaining ownership of the law firm and continuing to practice. Many managing partners structure these deals to take 30-50% of their equity value off the table while rolling the rest forward to participate in future growth.
The 7 Steps to Implement an MSO Structure
Here's the step-by-step process for transforming your law firm into an MSO-backed structure. While the legal and financial details can be complex, the roadmap itself is straightforward.
Step 1: Form the MSO Legal Entity
The first step is to create a new legal entity—typically an LLC—that will serve as your Management Services Organization. This entity is separate from your existing law firm. In most cases, the founding attorneys will initially own 100% of the MSO, though this will change once you bring in outside investors.
You'll need corporate counsel to handle the formation documents, operating agreement, and initial capitalization. The MSO should be domiciled in a state with favorable tax and business laws (Delaware and Nevada are common choices).
At this stage, the MSO is just an empty shell. It has no employees, no assets, and no operations. That comes next.
Step 2: Identify Which Functions Transfer to the MSO
Now you need to determine which roles and functions will move from the law firm to the MSO. As a rule of thumb:
Anything involving the practice of law stays in the law firm: attorneys, paralegals, case strategy, client intake decisions, fee negotiations, settlement authority.
Everything else moves to the MSO: accounting, HR, IT, marketing, advertising, call center operations, office leases, vendor relationships.
This is where you'll work closely with ethics counsel. The dividing line must be clear and defensible. If the MSO makes decisions that control the practice of law—such as which cases to accept or how much to charge—you've crossed into fee-sharing territory and created an ethics violation.
Some firms choose to have intake coordinators employed by the MSO (since they're not making legal judgments) while keeping paralegals in the law firm. Others keep all client-facing roles in the law firm and move only back-office functions to the MSO. The right answer depends on your specific operations and your state bar's interpretation of the rules.
Step 3: Transfer Assets and Employees to the MSO
Once you've identified what moves to the MSO, you execute the actual transfer. This includes:
Employees: Non-attorney staff who perform business functions are transferred to the MSO's payroll. They sign new employment agreements with the MSO.
Contracts: Vendor agreements, software licenses, office leases, and marketing contracts are assigned to the MSO (or new contracts are signed with the MSO as the counterparty).
Intellectual Property: Your firm's brand, website, marketing materials, and technology platforms are typically transferred to the MSO.
Equipment and Assets: Computers, furniture, phone systems, and other business assets move to the MSO.
Importantly, the law firm retains all client relationships, case files, trust accounts, and attorney-specific assets. The law firm also retains its malpractice insurance and bar association memberships.
This transfer is where tax and employment counsel become essential. Done incorrectly, you can trigger unwanted tax consequences or employment law complications.
Step 4: Draft and Execute the Shared Services Agreement (SSA)
The SSA is the contract that governs the relationship between the law firm and the MSO. This is the single most important document in the entire structure—it's what keeps you compliant with ethics rules while allowing the MSO to function.
The SSA specifies:
What services the MSO will provide (finance, HR, IT, marketing, etc.)
How much the law firm will pay for those services
What control the law firm retains over legal decisions
How performance is measured and how disputes are resolved
The pricing structure is critical. Under Rule 5.4 of the Model Rules of Professional Conduct, attorneys cannot share legal fees with non-lawyers. That means the MSO's compensation cannot be a percentage of the law firm's revenue or contingency fees. Instead, the SSA must use one of these compliant pricing models:
Flat monthly fee: The law firm pays a fixed amount each month for the MSO's services.
Per-attorney fee: The law firm pays a set amount per attorney employed (common in multi-location platforms).
Cost-plus arrangement: The MSO bills its actual costs plus a reasonable markup.
The fee must reflect fair market value for the services provided. Setting it artificially low (to maximize law firm profits) or artificially high (to funnel money to MSO investors) can create ethics and tax problems.
Most firms hire specialized legal counsel who have drafted MSO structures before. The SSA needs to be bulletproof—state bars, investors, and acquirers will scrutinize it closely.
Step 5: Normalize the Law Firm's Financials
Before you bring in outside investors, you need to recast the law firm's and MSO's financial statements to reflect the new structure. This step is sometimes called 'normalizing' the financials.
Here's what changes:
The law firm's expenses decrease dramatically (because it's no longer paying for marketing, IT, HR, etc.). Those costs move to the MSO.
The law firm now has a single large expense: the service fee it pays to the MSO under the SSA.
The MSO's income statement shows the service fee as revenue and the costs of delivering those services as expenses.
The MSO's EBITDA (earnings before interest, taxes, depreciation, and amortization) becomes the relevant profitability metric for investors.
This is also when you'll make compensation adjustments. In most traditional law firms, the founders pay themselves whatever is left over after expenses (often 50-70% of revenue). That's fine when you own 100% of the profits, but outside investors require a normalized structure where founder compensation reflects a market-rate salary for a CEO/managing partner, and the remaining profit flows to all equity holders proportionately.
A quality-of-earnings analysis (typically $30K-$50K from a reputable accounting firm) will help you present clean, defensible financials to investors.
Step 6: Negotiate and Close the Investment Transaction
Now you're ready to bring in outside capital. This usually involves selling a minority stake in the MSO to a private equity firm, family office, or strategic investor.
The transaction follows a standard M&A process:
You (or your M&A advisor) market the opportunity to potential investors.
Interested parties sign NDAs and receive a Confidential Information Memorandum (CIM) describing the business, financials, and growth opportunity.
Investors submit Letters of Intent (LOIs) indicating how much they'll invest, at what valuation, and what ownership percentage they'll receive.
You select a partner and enter exclusive negotiations.
The investor conducts due diligence—reviewing your financials, client contracts, MSO structure, SSA, and legal compliance.
You negotiate and sign a Stock Purchase Agreement (SPA) and related transaction documents.
The investor wires the funds, receives their equity stake, and typically gets a board seat or observer rights.
Most MSO transactions in the personal injury market are structured as minority investments—the founders retain 51-70% of the MSO equity and the investor takes 30-49%. The law firm always remains 100% attorney-owned.
The capital the investor provides goes into the MSO, where it can be used to fund growth initiatives: expanding marketing spend, hiring executives, upgrading technology, acquiring other firms, or opening new offices. A portion often goes to the founders as a liquidity event—this is where you get paid for the value you've built.
Step 7: Operate Under the New Structure—and Build for the Future
Once the transaction closes, your firm operates as two connected entities: the law firm continues practicing law, and the MSO provides all business services under the SSA.
From the client's perspective, nothing changes—they still hire your law firm, work with your attorneys, and pay legal fees the same way they always have. But behind the scenes, the operational model is now supported by professional management and institutional capital.
Over time, this structure creates several compounding advantages:
You can invest in growth at a scale that wasn't possible before—national advertising campaigns, best-in-class technology, executive recruiting.
The MSO can acquire other firms and integrate them into a platform model, driving economies of scale.
Your firm's operational sophistication increases, which improves case outcomes, client satisfaction, and referral rates.
When you're ready for a full or partial exit, you have a more valuable, more scalable business to sell.
Many MSO-backed firms eventually pursue a second round of capital (often from the same investor) to fund acquisitions or national expansion. Others use the platform as a foundation for an eventual sale to a larger legal services platform or a public company.
The MSO structure isn't a one-time transaction—it's a framework for building a durable, scalable, and ultimately more valuable legal services business.
Key Considerations and Common Questions
Will I lose control of my firm?
No. The law firm remains 100% attorney-owned, and all decisions about legal representation—which cases to take, how to staff them, what to charge, when to settle—stay entirely within the attorneys' control. The MSO investor gets governance rights over business decisions (marketing spend, hiring a CFO, etc.), but not legal decisions.
Is this legal in my state?
The MSO/PC structure is compliant with legal ethics rules in all 50 states, as long as the structure is properly designed and the SSA prohibits the MSO from exercising control over the practice of law. Some states require ethics opinions from bar counsel before closing, but the model itself is widely accepted.
Arizona and Utah have gone further by allowing Alternative Business Structures (ABS), where non-lawyers can directly own law firms. For firms in those states, ABS may be a simpler path. But for everyone else, MSO is the established structure.
How much does this cost to set up?
Plan for $75K-$150K in total transaction costs: corporate counsel, ethics counsel, M&A counsel, accounting for quality of earnings, and M&A advisory fees (if you hire a banker). If you're raising significant capital ($5M+), these costs are a small fraction of the total transaction value.
What if I'm not ready to sell yet?
You don't need to bring in outside investors immediately. Some firms set up the MSO structure purely for operational reasons—to separate legal and business functions, hire non-lawyer executives, and prepare for a future transaction. Once the structure is in place, you can raise capital whenever the timing makes sense.
The Strategic Opportunity
The personal injury market is consolidating. Private equity-backed platforms are emerging in every major market, leveraging superior capital, technology, and operational infrastructure to gain share. Firms that remain in a traditional structure will find it increasingly difficult to compete—on marketing spend, on talent, and on the client experience that drives referrals and retention.
The MSO structure is the tool that allows independent firms to access the same advantages that PE-backed platforms have: institutional capital, professional management, and a governance model that separates legal excellence from business execution.
For managing partners who want to build something durable, create liquidity without selling, and position their firms for long-term success, the MSO structure is worth serious consideration. The seven steps outlined here are executable, the legal framework is well-established, and the investors are actively looking for high-quality firms to back.
The question isn't whether MSO structures will become common in PI law—they already are. The question is whether your firm will be positioned to benefit from that shift, or whether you'll be competing against firms that are.
