Coterie vs Marsh Mclennan Agency: Professional Liability / E&O Insurance

Marsh McLennan Agency has an adviser discuss placement with your organization and treats architects and lawyers as separate lines. Coterie Insurance writes a miscellaneous professional liability policy sold through agents and brokers, with limits from $25,000 to $1,000,000.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-10-01

Coterie lists $25,000 to $1 million each-claim MPL limits, aggregate multipliers and reporting extensions, alongside eligible professions and six unavailable jurisdictions. MMA names E&O, A&E and lawyers lines.

What Are the Key Differences Between Coterie Insurance and Marsh McLennan Agency Professional Liability (E&O) Insurance?

Limit and reporting choices

Coterie’s broker-sold MPL brochure lists each-claim limits from $25,000 to $1 million, an aggregate of two times the limit (three times at $1 million), a 60-day basic reporting extension and optional one-to-six-year extensions. MMA’s source names E&O, A&E and lawyers professional lines. Compare the proposed MMA form’s limit and reporting period with Coterie’s published options rather than assuming the same structure. [2] [5]

Eligibility and geography

Coterie lists specific eligible professions and says MPL is unavailable in DC, IL, MA, MT, ND and VA. MMA’s source names several professional categories, including A&E and lawyers. A buyer should check Coterie’s occupation-specific restrictions and state list, then ask MMA which line and jurisdiction apply to the same practice. [2] [5]

What Should You Confirm in Coterie Insurance and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes?

  • Is your profession and state eligible for Coterie MPL, and which aggregate and reporting extension are quoted? [2] [5]
  • Which MMA specialist line, limit and reporting terms apply to your practice? [2] [5]

Areas of coverage

Coterie Insurance

  • role: Coterie writes Miscellaneous Professional Liability (MPL) as a claims-made policy sold through agents and brokers to protect a small-business client against third-party claims for errors or omissions in their professional services. MPL brochure policy-overview paragraph.company-reportedSource ↗
  • insurer: The MPL brochure names the policy form 'Coterie Professional Liability Errors and Omissions Insurance Declarations' (form code CTPL CWW PL) but does not name the issuing insurer; that appears only on the policy declarations. MPL brochure 'Mandatory Countrywide PL Policy Forms' table.company-reportedSource ↗
  • eligibility: Coterie lists dozens of eligible professions for MPL, including accounting services, architects and engineers, bookkeeping, human resources consulting, interior design, property management, real estate agents/brokers, and technology services/IT consulting, each with profession-specific exclusions in some cases (for example, barbers/beauticians exclude services like electrolysis and tattoo services). MPL brochure 'Eligible Professions' and 'Eligible Professions (Continued)' lists.company-reportedSource ↗
  • eligibility: Coterie says MPL is available in most states but is currently unavailable in DC, IL, MA, MT, ND, and VA. MPL brochure 'MPL unavailable' note.company-reportedSource ↗
  • coverage: Coterie's MPL policy covers economic or financial (non-physical) damages arising from wrongful acts in professional services, such as faulty reports or verbal advice that cause a client financial loss; it is written on a claims-made basis covering incidents reported during the policy period or an extended reporting period, occurring after the policy's retroactive date. MPL brochure policy overview and 'Professional Liability Limits of Insurance' definitions.company-reportedSource ↗
  • coverage: Coterie's MPL base form excludes bodily injury or property damage claims, fraud or intentional wrongful acts, wrongful termination or discrimination claims, and claims based on contractual liability assumed beyond what would exist without the contract, among other listed exclusions. MPL brochure 'Professional Liability Policy Base Form Exclusions' list.company-reportedSource ↗
  • limits: Coterie offers MPL each-claim limits of $25,000, $50,000, $250,000, $500,000, or $1,000,000, with the aggregate set at two times the each-claim limit (three times for the $1,000,000 option); the basic policy includes a 60-day extended reporting period, with optional purchased extensions of 1 to 6 years, and up to 6 years of prior-acts (retroactive) coverage. MPL brochure 'Available Limits' table and 'Extended Reporting Period'/'Retroactive Date' definitions.company-reportedSource ↗
  • application: MPL is distributed only through agents and brokers using Coterie's quoting platform; the reviewed brochure does not describe a direct-to-business application path. MPL brochure framing as 'for Agents and Brokers'.company-reportedSource ↗

Marsh McLennan Agency

  • role: Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • eligibility: Organizations seeking professional liability placement; source does not imply all professions share one policy. professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • coverage: The cited product page describes E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • application: The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • limits: The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred.not-disclosedSource ↗

Sources reviewed

  1. 01
    Coterie Insurance small business products overview

    Coterie Insurance · Product line overview page listing Professional Liability among Coterie's coverages · accessed 2026-09-23

  2. 02
    Miscellaneous Professional Liability (MPL) Policy Overview & Product Highlights for Agents and Brokers

    Coterie Insurance · Policy overview paragraph; Eligible Professions list; 'Currently unavailable in: DC, IL, MA, MT, ND, and VA'; Professional Liability Limits of Insurance table; Claims-Made Policy Form / Retroactive Date / Extended Reporting Period definitions; Mandatory Countrywide PL Policy Forms; Base Form Exclusions · accessed 2026-09-23

  3. 03
    Professional Liability – US Direct Errors and Omissions Insurance

    Hiscox Inc. specimen · About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act · accessed 2026-09-16

  4. 04
    Professional liability insurance

    Insurance Information Institute · Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion) · accessed 2026-09-16

  5. 05
    Executive and Professional Liability | MMA

    Marsh McLennan Agency · E&O, architects and engineers, and lawyers professional lines are named in the policy suite. · accessed 2026-09-30

  6. 06
    FAQ: Professional liability insurance

    Texas Department of Insurance · What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies · accessed 2026-09-16

  7. 07
    Get business insurance

    U.S. Small Business Administration · Six common types of business insurance table · accessed 2026-09-16

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