Large Firm (50+ Attorneys) insurance guide
Complex, multi-carrier programs for firms with national reach and high-value exposures.
Overview
Large law firms operate insurance programs that resemble those of mid-market corporations. With dozens or hundreds of attorneys across multiple offices and jurisdictions, the insurance program must address international coverage for cross-border matters, regulatory compliance in every state where the firm is admitted, and the personal liability of partners whose capital accounts and retirement benefits are at stake. The placement process involves detailed submissions to the London and domestic excess markets, actuarial analysis of the firm's loss history, and negotiations over policy terms that can take months to complete. Large firms often retain a significant portion of risk through high deductibles or self-insured retentions, reflecting both the firm's financial capacity and the market's appetite for the account.
Typical Coverage
Professional liability towers for large firms commonly range from $10,000,000 to $50,000,000 or more in total limits, built from a primary layer and multiple excess layers placed across five to fifteen carriers. Deductibles or self-insured retentions of $100,000 to $500,000 per claim are standard. Cyber liability programs of $5,000,000 to $20,000,000 reflect the massive volume of confidential data under management. D&O limits of $5,000,000 to $10,000,000 protect partners and the executive committee. Employment Practices Liability of $3,000,000 to $5,000,000 covers the large workforce. International coverage extensions or local admitted policies are required for offices outside the United States.
Common Risks
Mega-claim exposure defines the large firm risk profile: a single securities class action defense error or failed M&A transaction can generate a claim exceeding $50,000,000. Lateral partner departures create both prior-acts exposure and competitive intelligence risks. Multi-jurisdictional regulatory investigations by the SEC, DOJ, or state attorneys general can trigger coverage under multiple policy lines simultaneously. Partner retirement and withdrawal disputes are frequent sources of D&O claims. The firm's sheer size makes it a high-profile cyber target, and a breach affecting client data from multiple practice groups can trigger notification obligations in dozens of states and countries.
Typical Premium Range
$150,000+ per year
Our Recommendations
Engage a global insurance broker with a dedicated law firm practice group to manage the program. Conduct an annual actuarial review of the firm's loss history to optimize retention levels and layer attachments. Establish an internal risk management department with a general counsel or risk partner overseeing insurance, conflicts, ethics, and regulatory compliance. Negotiate multi-year arrangements with key carriers to stabilize pricing and terms. Ensure international coverage is compliant with local insurance regulations in every jurisdiction where the firm operates, using admitted policies where required. Review D&O coverage annually as partnership composition and governance structures evolve.
Frequently asked questions
How do large firms structure their professional liability towers?
A typical tower begins with a primary layer of $5,000,000 to $10,000,000, followed by multiple excess layers each providing $5,000,000 to $10,000,000 in additional coverage. Carriers higher in the tower charge lower rates per million because they are less likely to be reached by a claim. The total tower is designed by the broker based on the firm's revenue, claims history, practice area mix, and risk tolerance.
Do partners need personal coverage beyond the firm's policy?
In most cases the firm's professional liability policy covers partners for work performed on behalf of the firm. However, partners serving on outside boards, providing pro bono services through separate organizations, or maintaining side practices may need personal excess coverage or separate policies for those activities. D&O coverage at the firm level protects partners in their governance capacity.
What international coverage considerations apply to large firms?
Firms with offices or matters outside the United States need coverage that responds to claims made in foreign jurisdictions. Some countries require locally admitted insurance policies, meaning a U.S.-based policy alone may not be enforceable. A global program with a master policy and local admitted policies in each jurisdiction ensures compliance and eliminates coverage gaps for cross-border work.
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