Ryan T. O'Hollaren

Jennifer B. Sackett is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Jennifer B., who practices law in Portland, Oregon, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer B. is held by other top lawyers in the same geographic and legal practice area.

Margot D. Seitz is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Margot D., who practices law in Portland, Oregon, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margot D. is held by other top lawyers in the same geographic and legal practice area.

Riley Lagesen is a top attorney recognized by Best Lawyers in the practice area(s) of Leisure and Hospitality Law. Riley, who practices law in Portland, Oregon, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Riley is held by other top lawyers in the same geographic and legal practice area.

Steven has extensive experience in managing legal resources and coordinating criminal investigations, prosecutions, civil litigation and negotiations. His expertise in working with state and federal agencies, professionals in every field, expert witnesses, law enforcement and political officials assure his firm's comprehensive representation in complex, multi-faceted matters. Steven Ungar is co-chair of the Firm’s White Collar Criminal Defense, Regulatory Compliance and Special Investig...

Michael W. Shackelford is a Shareholder in Buchalter’s Portland office and a Member of the firm’s Corporate Practice Group. Mr. Shackelford’s corporate practice focuses on counseling and business transactions, including mergers, acquisitions, divestitures, equity financings and joint ventures for privately-held and family-owned businesses in a variety of industries, including the technology, manufacturing, healthcare, bioscience and food processing industries.

Collin McKean is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Collaborative Law: Family Law, Family Law and Litigation - Labor and Employment. Collin, 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 Collin is held by other top lawyers in the same geographic and legal practice area.

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 ...

Julie Smith is an appellate lawyer who also specializes in advising trial attorneys on litigation strategy and in drafting and arguing complex motions. Before joining Cosgrave, she served as an Assistant Attorney General in the Trial and Appellate Divisions of the Oregon Department of Justice, where she twice received the department’s Outstanding Achievement Award. Prior to that, she clerked for the Honorable Virginia Linder of the Oregon Court of Appeals. Appellate services include: Re...

Steve D. Osborne is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Steve D., 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 Steve D. is held by other top lawyers in the same geographic and legal practice area.

Calvin Keith manages the Employment Law practice in the Portland office. Cal has over 25 years of experience in employment law including numerous trials and arbitrations of employment-related matters. Cal's experience includes complex litigation including multi-party and class action employment and wage-and-hour litigation as well as litigation of unlawful competition, trade secret and confidential information issues. He received his J.D. in 1978 from the University of Michigan. Cal also prov...