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Professional Liability

Get a professional liability quote today

Contact your Hanover agent today for a quote and to learn more about our professional liability insurance.

Professional liability insurance, also known as errors & omissions coverage, provides protection for defense costs and settlement payments for claims that your firms’ work or advice was inadequate, contained errors, or failed to meet specifications.

Learn about our industry-specific professional liability solutions that can be tailored to fit your business.


Accountants tend to be meticulous and take great care in their work. Most mistakes are caught quickly, but some errors could prompt unhappy clients to take legal action that may cost thousands of dollars to defend. The Hanover’s Accountants Professional Liability Advantage offers broad protection for a wide range of accounting professionals, including:

  • Accountants
  • CPA firms
  • Bookkeepers
  • Tax preparers
  • Enrolled agents

We offer flexible coverages and endorsements that can be tailored to meet the needs of your firm, including:

  • Regulatory proceedings coverage
  • Crisis event coverage
  • Privacy event coverage
  • Expense reimbursement
  • Subpoena assistance coverage
  • Professional services broadening endorsements available for those who provide services as a life insurance agent, registered representative or real estate agent
  • Broad definition of insured includes independent contractors and predecessor firms
  • Deductible reduction incentives for use of mediation, arbitration and engagement letters

Architects & Engineers

Even the best-laid plans can go awry. A project delay, disagreement over a payment, an error in selection of materials, or other client complaint could lead to legal action against your firm.  The Hanover’s Architects & Engineers Advantage offers broad professional liability protection for a wide range of design professionals whose focus is:

  • Architecture
  • Aerial mapping
  • Civil engineering
  • Construction management – agency only
  • Engineering
  • Environmental – phase I and phase II only
  • Electrical engineering
  • Heating, ventilation and air conditioning
  • Interior design
  • Landscape architecture
  • Land surveyors
  • Mechanical engineering
  • Owner's representative
  • Project management
  • Structural engineering
  • Traffic engineering

To meet the evolving needs of architects and engineers, we offer specialized professional liability coverages and endorsements that can be tailored to meet your unique needs, including:

  • Remediation expense – no design/build exclusion
  • Withheld client fee assistance
  • Reputation protection expense
  • Crisis event expense
  • Peer review expense
  • Disciplinary proceedings expense
  • Nonprofit directors and officers expense
  • Cyber privacy, security and media liability coverage
  • Definition of unmanned aircraft specifically states "drone"
  • Additional claim-free and risk management deductible reduction benefits
  • Additional extended reporting period options


Law firms have never faced more risk exposures to their finances and reputation. Lawyers need the right insurance to adequately protect their business. The Hanover’s Lawyers Professional Advantage offers broad protection for small and mid-size law firms whose area of practice is:

  • Administrative (general)
  • Business transactions < $500K
  • Civil litigation (general)
  • Creditor rights (bankruptcy)
  • Criminal defense
  • Elder law
  • Employment law (management)
  • Estates/trusts/probate < $1 million
  • Family law
  • Immigration law
  • Juvenile rights, guardianships
  • Mediation, arbitration (other than securities/FINRA)
  • Medicare
  • Municipal law (general)
  • Plaintiff litigation (Social Security, workers’ compensation)
  • Public utilities (not finance)
  • Residential real estate
  • Tax preparation (individual)

We offer flexible coverages and endorsements that can be tailored to meet the needs of your firm, including:

  • Duty to defend
  • Worldwide coverage if claim/suit is brought in the United States or Canada
  • Predecessor firms coverage
  • Coverage for independent contractors, of counsel attorneys, interns or volunteers is included in the definition of "insured individual"
  • Coverage for work done for firm clients in which firm member(s) has ownership interest (conflict of interest)
  • Coverage for title agents
  • Coverage for defense of disciplinary complaints
  • Reimbursement for income lost by attendance at claim hearings, etc.
  • Subpoena Assistance
  • Multiple automatic, firm and individual extended reporting period options
  • Intentional acts defended up to final adjudication—no indemnity

Miscellaneous Professionals

A service delay, disagreement over a payment, or other client complaint could lead to legal action against your company. The Hanover’s Miscellaneous Professionals Advantage offers broad protection for a wide range of personal, business, and professional service providers, including:


  • Communications
  • Educational
  • Energy
  • Human resources
  • Management
  • Marketing
  • Public relations
  • Research and development
  • Telecommunications
  • Training

Media and creative professionals

  • Advertising agencies
  • Broadcasters
  • Graphic designers
  • Interior decorators and designers
  • Market researchers
  • Publishers

Real estate professionals

  • Agents and brokers
  • Appraisers
  • Auctioneers
  • Green energy auditors
  • Home inspectors
  • Lease brokers
  • Mortgage brokers
  • Property managers

Other professionals

  • Arbitrators and mediators
  • Business associations
  • Claims adjusters
  • Employment agents and executive recruiters
  • Event and meeting planners
  • Expert witnesses
  • Forensic analysis (non-medical)
  • Funeral directors
  • Lobbyists
  • Medical billing
  • Payroll services
  • Private investigator services
  • Process servers
  • Record storage and destruction
  • Translation services
  • Travel agents

We offer two different miscellaneous professional products for tailored protection:

  • Endorsement option — Forselect classes of small businesses, we offer an errors and omission endorsement option that can be added on to Hanover's Business Owner's Policy (BOP) or Commercial Package Policy (CPP).
  • Stand-alone product — For small, mid-sized and large professional services firms that need broader coverages and higher limits, we offer a stand-alone professional liability product.

Stand-alone product features include:

  • Claims made and reported
  • Deductible reduction for mediation claim settlement
  • Extended reporting period options up to five years
  • Professional services coverage
  • Personal injury coverage
  • Privacy and security coverage
  • Pre-claim assistance
  • Disciplinary proceedings
  • Subpoena assistance
  • Crisis event
  • Reputation event
  • Withheld client fee
  • Nonprofit directors and officers expense
  • Emergency web hosting
  • Replacement of key officers
  • Workplace violence counseling
  • Professional liability enhancement endorsement which includes nine supplemental coverages

Professional liability insurance solutions with more value

Our agents, risk managers, and claims professionals have the expertise to help tailor coverage to meet your needs. We offer robust risk solutions, and if the unexpected happens, our industry-leading claim services and 24/7 reporting will help you get back to business quickly. To help you manage your budget, we offer direct billing with multiple payment options to help make insurance payments convenient and more affordable.

End-to-end protection for professionals

In addition to our professional liability solutions, we also offer a full suite of products to help protect your business’ property, autos, employees, and clients:

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