A first-year associate gives notice on a Friday afternoon. Not because of the work. Because a firm across town offered a benefits package yours cannot match, and she has a child starting daycare in the fall.
According to the NALP Foundation's Calendar Year 2024 report, associate attrition across U.S. law firms reached 20% in 2024, up from 18% the prior year, with the highest rates reported at the smallest firms. Many of those departures happen early, with associates increasingly leaving within four years of joining. That churn has a direct cost to the firm in recruiting, onboarding, and lost productivity that never appears on a billable hours report.
For a growing number of small and mid-size law firms, a Professional Employer Organization (PEO) is part of the answer. Not because it changes how a firm practices law, but because it handles the parts of running a business that have nothing to do with practicing law.
A PEO is a company that partners with a business to manage payroll, employee benefits, HR compliance, and workers' compensation under a co-employment structure. The firm keeps full control over hiring decisions, case assignments, and daily operations. The PEO handles the administrative and compliance infrastructure behind the scenes.
According to NAPEO, the national trade association for PEOs, more than 200,000 U.S. small and mid-size businesses currently use a PEO. For law firms specifically, the arrangement addresses several problems at once: a benefits gap against larger competitors, multi-state employment complexity, and an administrative burden that typically lands on whoever is least equipped to carry it.
Want a broader overview of the model first? See What Is a PEO and How Does It Work.
Law firm HR is not the same as HR at a typical small business. Three things make it different.
The structure. Firms run on a partnership model rather than a standard corporate hierarchy. Partners, associates, paralegals, and administrative staff fall into different categories under employment law, and treating them identically creates compliance and classification risk.
The geography. Attorneys are frequently licensed and practicing across state lines. Remote and hybrid work arrangements are now an expectation, not a perk, in the legal industry — which means a firm headquartered in one state can easily carry employment law obligations in three or four others without realizing it. Multi-state payroll registration, state-specific leave laws, and wage and hour compliance all follow the employee's work location, not the firm's mailing address. See how firms handle this in practice: How to Choose PEO Services for Multi-State Teams.
The confidentiality standard. Any outside partner handling HR data for a law firm needs to operate at the same level of discretion the firm already applies internally. Law firms should evaluate a PEO's confidentiality, privacy, and data security practices directly. Credentials such as ESAC accreditation and IRS Certified PEO status are useful indicators of operational and financial standards, but firms should also ask specifically about the provider's security controls, data handling policies, and service model before proceeding.
Yes. Firms with 5 to 100 employees typically see the most benefit from a PEO relationship, and many small and solo practices bring on a PEO specifically because they do not have the internal infrastructure to build competitive benefits independently.
The economics work because PEOs pool employees across all their client businesses. That gives even a five-attorney firm access to group health, dental, vision, and retirement plan pricing that only larger organizations could typically negotiate on their own. According to NAPEO's 2024 white paper, commissioned from independent economists at McBassi & Company and based on data from more than 15,000 client businesses, companies that use a PEO have a growth rate more than twice as high as comparable businesses, 12% lower employee turnover, and are 50% less likely to go out of business.
That is often the difference between retaining a strong paralegal and watching her accept an offer down the street.
A PEO typically handles four areas for law firms:
Payroll. Attorney compensation, associate wages, paralegal and support staff pay, and multi-state payroll for firms with remote employees — processed accurately, on time, with tax filings handled.
Benefits. Group health, dental, vision, life insurance, and 401(k) plans at group rates that reflect a far larger pool than the firm could access independently. Small firms gain access to the same benefit plan options typically available only to large organizations — which matters when a candidate is comparing offers side by side.
HR compliance. Employment law monitoring, employee handbook drafting and annual review, I-9 compliance, state-specific poster and notice requirements, and leave policy administration across multiple jurisdictions. A PEO carries this compliance weight so a managing partner is not spending billable hours becoming an amateur employment attorney. For more on what this covers: 10 Key Benefits of Outsourcing HR Functions for SMBs.
HR support. Day-to-day guidance on terminations, discipline, accommodations, and onboarding. The best PEO relationships provide a named HR contact who knows the firm rather than a rotating support queue.
No. A PEO manages HR administration for the firm's own employees. It has no involvement in case work, client files, or client relationships. The firm retains full authority over hiring, firing, case assignments, and every decision that touches the practice of law.
When evaluating any PEO, ask specifically about data security practices, confidentiality policies, and how employee data is handled. ESAC accreditation — the industry's primary credentialing standard — covers financial assurance, ethical conduct, and operational standards. It is a meaningful indicator of organizational reliability, but ask about security controls directly rather than treating accreditation alone as sufficient.
No. A PEO acts as a support layer, not a replacement. The office manager at a smaller law firm is typically responsible for HR, non-legal staff management, office equipment, and facilities. A PEO consolidates what would otherwise be multiple vendors — benefits, payroll, compliance, workers' comp — into one relationship, freeing the office manager to focus on the parts of the role that require human judgment: culture, staff relationships, and day-to-day firm operations.
A payroll service processes paychecks. A PEO takes on payroll, benefits administration, workers' compensation, and HR compliance together, under a co-employment structure that also provides access to better group benefits rates. The difference in practical value for a law firm without internal HR infrastructure is significant.
If you're weighing these options: Why Small Businesses Are Rethinking HR, Payroll, and Benefits.
Not all PEOs understand the legal industry. When evaluating options, ask specifically about:
The firms that get the most out of a PEO relationship are not looking for someone to run their practice. They are looking for a partner that quietly handles the parts of running a business that have nothing to do with practicing law.
If benefits, compliance, or HR administration have started to feel like a second job alongside the one your firm actually does, it is worth a conversation.
Helpside has worked with law firms for over 35 years. We hold ESAC accreditation and IRS Certified PEO status, and 92% of our legal industry clients renew every year. A free benefits audit shows exactly what a PEO relationship would cost and what your firm would save on benefits — no obligation to proceed.