Professional Liability

Those who provide professional services must meet the highest standards of ethical responsibility and excellence in their fields—and they expect no less from their lawyers. It is Cosgrave’s honor to be called on regularly to represent the expertise of professionals in many different industries.

Our own professional excellence as lawyers is focused industry knowledge and integrity. For decades, Cosgrave has helped professionals achieve favorable results in mediations, at trial, and on appeal. Our clients include lawyers, engineers, accountants, medical professionals, and architects, to name a few.

In addition to defending professionals, we also advise them on day-to-day issues such as business formation, lease review, succession planning, asset purchase or sale, tax planning, employment law, and claims risk management.

Cosgrave attorneys with particular experience and talent in the representation of professionals include:

  • Thom Brown, who has defended or taken numerous state and federal court appeals of attorney malpractice claims.
  • Andrew Burns, who has handled many construction engineering and architecture negligence claims.
  • Deanna Franco, who has handled legal malpractice cases involving estate planning, probate and elder abuse.
  • Frank Lagesen, a CPA (retired), who has defended numerous accountant malpractice claims.
  • Mike Lewton, who earned a masters degree in social work, has handled many social worker claims.
  • Nick Wheeler, who defends a wide range of legal malpractice matters with an emphasis on estate planning/probate and business disputes.

Representative Professions

  • Accountants
  • Architects
  • Attorneys and law firms
  • Bar association officers
  • Dentists
  • Engineers
  • Financial advisors
  • Insurance brokers and carriers
  • Mortgage brokers
  • Nurses
  • Physicians
  • Psychologists
  • Real estate appraisers
  • Social workers
  • Stockbrokers


  • ALFA International Professional Liability Practice Group
  • Oregon State Bar Local Professional Responsibility Committee