Katherine E. Tammaro Partner




Katherine Tammaro has nearly 25 years of experience representing insurance companies in complex coverage matters throughout the country, including professional liability; specialty lines, including media-specific policies; D&O and EPLI; environmental; advertising; personal injury; product liability, including asbestos and chemical exposures; and construction defect cases. She also handles numerous claims of bad faith and improper claims handling.

As a co-chair of Wilson Elser’s Pro Bono Committee, Kate oversees the continued effectiveness of the firm’s pro bono program and is committed to advancing its objectives.

Kate has authored numerous articles on insurance coverage topics, including analysis of the pollution exclusions; allocation of defense and indemnity costs; advertising and personal injury claims handling practices; additional insured and contractual indemnification issues; targeted tender and occurrence concerns; discovery and technology topics such as discovery of electronic data and privilege in general and in bad faith cases; professional liability policies, including claims made, coverage for mold under liability and property policies; construction defects under liability and property policies, including OCIPs; and homeowners and auto claims issues. She has spoken at numerous ACI, PLRB, DRI and Mealey’s conferences throughout the country on these topics. 

Representative Matters

Defending insurance company clients in state and federal court in complex coverage matters involving first- and third-party policies and claims of breach of duty to defend and indemnify, bad faith allegations, violation of various Unfair Claims Practices Acts and breach of contract.

Defending insurance company clients in state and federal courts involving issues related to identification of insureds, application of form and manuscript exclusions and provisions, allegations of waiver and estoppel, allocation and application of “other insurance” clauses, personal and advertising injury analysis, existence of covered damages under environmental policies, policy interpretation issues, reformation and rescission issues, coverage for alleged sexual assault and/or abuse, and additional insured issues.

Representing insurance company clients in state and federal appellate courts in matters involving breach of the duty to defend and bad faith on first- and third-party policies, allocation and application of self-insured retentions and deductibles, use of extrinsic evidence in determining the duty to defend and coverage for alleged trade secret infringement, and reformation and rescission issues, E&O and EPLI issues.

Counseling and providing coverage opinions to insurance company clients regarding the potential for the existence of coverage and potential duty to defend and extra-contractual implications for issues involving professional liability E&O policies, EPLI and D&O policies, first-party property policies, commercial auto policies, commercial general liability policies, umbrella and excess policies, environmental policies, workers’ compensation and employers’ liability policies, first-party property policies, standard and surplus lines policies.