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Law Firm Insurance

Professional Liability / Legal Malpractice for law firms

Protects your firm when a client alleges negligent legal advice, missed deadlines, or errors in representation.

Professional Liability / Legal Malpractice insurance for law firms

Key Takeaway

Protects your firm when a client alleges negligent legal advice, missed deadlines, or errors in representation. Every attorney-client engagement creates exposure to a malpractice claim, regardless of how competent the work product is.

Overview

Professional liability insurance, commonly known as legal malpractice insurance, covers claims arising from alleged errors, omissions, or negligent acts committed in the course of providing legal services. This includes missed statutes of limitations, conflicts of interest, drafting errors, inadequate discovery, and failure to know or apply the law correctly. Policies are written on a claims-made basis, meaning coverage applies to claims first reported during the active policy period regardless of when the underlying act occurred. Defense costs are typically included within the policy limit, so selecting adequate limits is critical to avoid eroding coverage during prolonged litigation.

Why it matters for law firms

Every attorney-client engagement creates exposure to a malpractice claim, regardless of how competent the work product is. Disgruntled clients, adverse outcomes, and communication breakdowns all generate claims. Many state bars and court systems now require proof of malpractice coverage or disclosure of its absence, making this coverage effectively mandatory for practicing attorneys.

Typical Limits

Solo practitioners commonly carry $250,000/$500,000 or $500,000/$1,000,000 per-claim/aggregate limits. Mid-size firms typically maintain $1,000,000/$3,000,000 or higher. Large firms handling high-value matters often secure $5,000,000 to $20,000,000 in coverage, sometimes layered across multiple carriers. Deductibles range from $2,500 for small firms to $100,000 or more for large operations.

Coverage at a Glance

FeatureSmall Firm (1-5 attorneys)Mid-Size Firm (6-25 attorneys)Large Firm (25+ attorneys)
Typical Limit$500K/$1M$1M/$3M$5M+
Typical Deductible$2,500-$5,000$10,000-$25,000$25,000-$100,000
Annual Cost Range$2,500-$8,000$15,000-$60,000$50,000-$500,000+
Priority LevelEssentialEssentialEssential

Frequently asked questions about professional liability / legal malpractice

How quickly can I bind malpractice coverage for a new firm?
Most carriers can issue a binder within 24 to 48 hours once the completed application is received. Some digital-first carriers offer same-day quotes for straightforward risks. However, firms with claims history or high-risk practice areas may require additional underwriting time.
Does my policy cover pro bono work?
Yes, most legal malpractice policies cover pro bono work performed in your capacity as a licensed attorney, as long as it falls within the policy's definition of professional services. However, work performed through a separate legal aid organization may be covered under that organization's policy instead.
Can I add a new partner to my policy mid-term?
Yes. Most carriers allow you to add attorneys mid-term by endorsement. The additional premium is typically prorated for the remaining policy period. New lateral partners with their own claims history may require separate underwriting approval and could affect your firm's overall premium.
What happens to my coverage when I retire?
When you retire and stop practicing, your claims-made policy will no longer be renewed. You should purchase tail coverage (extended reporting period) to protect against claims arising from work performed during your career. Many carriers offer retirement tail provisions at reduced rates for attorneys who retire after maintaining continuous coverage for five or more years.
Are contract attorneys and of-counsel covered?
Coverage depends on the policy's definition of insured. Most firm policies cover of-counsel attorneys and contract attorneys who work under the firm's supervision and are listed on the policy. Independent contractors who maintain their own practices typically need their own coverage. Always confirm coverage with your carrier when engaging non-employee attorneys.

Common questions about professional liability / legal malpractice

What does legal malpractice insurance cover?Legal malpractice insurance covers claims arising from alleged errors, omissions, or negligent acts in the delivery of l...How much does malpractice insurance cost for lawyers?Malpractice insurance premiums for lawyers typically range from $2,500 to $15,000 per attorney per year for small firms,...Is malpractice insurance required for attorneys?Only a few states mandate malpractice insurance for practicing attorneys, but many states require disclosure of uninsure...What is prior acts coverage and why does it matter?Prior acts coverage extends your malpractice policy to cover claims arising from legal work performed before the policy'...

Review your professional liability / legal malpractice coverage

Find out if your current professional liability / legal malpractice meets best practices for your firm size and practice areas.

Free coverage review for law firms.