Jeffrey W. "Jeff" Hansen

Michael Wiswall is a native Oregonian. He began his legal career at Hart Wagner LLP in 1994, and became a partner of the firm in 1999. For nearly 20 years, Mike’s practice has primarily focused on defending medical malpractice lawsuits throughout the Northwest. Mike also assists hospitals and clinics with pre-litigation evaluations, as well as with their early disclosure and resolution programs. Mike frequently represents physicians, dentists, pharmacists and nurses before state licensi...

Michael J. (Sam) Sandmire Partner Sam Sandmire's practice is focused on complex business, product liability, personal injury, and employment litigation and counseling. Sam defends and prosecutes claims in a wide range of business disputes and defends insured and self-insured manufacturers in product liability, class action, consumer fraud, construction and mass tort litigation. He has litigated toxic exposure, catastrophic injury, and multi-state consumer fraud claims on behalf of manufacture...

David Matheson, a partner in the firm’s Business practice, brings value to clients by providing strategic and practical advice. He has more than 20 years of experience in counseling on corporate governance matters, raising capital through public and private equity and debt offerings, and acquiring and disposing of businesses and assets. David advises domestic and foreign public companies — including controlled companies and master limited partnerships — on their SEC and secu...

Marc A. Johnston is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Marc A., who practices law in Portland, Oregon, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc A. is held by other top lawyers in the same geographic and legal practice area.

Melissa E. Chapman is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Melissa E., who practices law in Portland, Oregon, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa E. is held by other top lawyers in the same geographic and legal practice area.

Sonia Montalbano is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration, Commercial Litigation, Employment Law - Individuals, Employment Law - Management, Litigation - Labor and Employment, Litigation - Real Estate, Nonprofit / Charities Law and Personal Injury Litigation - Plaintiffs. Sonia, who practices law in Portland, Oregon, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Soni...

Michael Fillingame is a member of Buchalter’s Corporate and Real Estate Practice Groups, and a Senior Counsel in the Firm’s Portland Office. Mr. Fillingame represents public and private companies in a broad range of complex corporate transactional matters, including mergers and acquisitions, joint ventures, private equity investments and corporate governance. He also has substantial experience representing clients in a wide range of real estate transactions, including the acquisit...

Todd Lyon is a partner in the firm's Portland and Seattle offices and co-chair of the firm's Labor Relations Practice Group. He has been a labor lawyer for over 20 years, representing public and private sector employers in labor negotiations, collective bargaining, grievance and interest arbitrations, strikes/lockouts, relocation and closures, work jurisdiction disputes, and other litigation involving employment law and benefits. Todd has also successfully litigated before the National Labor ...

Alex Wheatley is an attorney in the firm's Portland office. Alex provides local and national employers with advice on compliance with employment laws and representation against administrative claims and lawsuits in Oregon and Washington. Alex is passionate about working with employers to accomplish their goals within the confines of the law. He has substantial experience working with employers of all sizes in creating and implementing policies and practices, providing counsel with respect to ...

Lawrence B. Burke is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Lawrence B., who practices law in Portland, Oregon, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lawrence B. is held by other top lawyers in the same geographic and legal practice area.