John Michael "Mike" Mattingly

Sheila Fox Morrison is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law and Trademark Law. Sheila Fox, who practices law in Portland, Oregon, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sheila Fox is held by other top lawyers in the same geographic and legal practice area.

John Thomas is a partner in the firm's Business practice. He counsels clients in the areas of public offerings, mergers and acquisitions, private placements, restructurings and spinoffs, securities compliance and corporate governance.

David Connell is a Shareholder in Buchalter’s Portland office and a member of the Firm’s Corporate Practice Group. Mr. Connell has extensive experience in the emerging growth, technology, nonprofit and social enterprise, energy, and healthcare sectors and often serves as general counsel to business and nonprofit enterprises. He began his career as a tax attorney with an international accounting firm, and brings his tax and finance experience to the table when advising clients.

Clifford A. DeGroot is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Clifford A., who practices law in Portland, Oregon, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Clifford A. is held by other top lawyers in the same geographic and legal practice area.

Jaimie has been a practicing attorney in the Portland metro area since 2012. She joined Black Helterline LLP in 2022 after four years working at a Portland insurance defense firm focusing on construction defect and general liability defense. Prior to that, Jaimie served as the first ever volunteer prosecutor for the Washington County District Attorney’s Office; worked for a Seattle-based firm focusing on lending litigation; and worked with Stuart M. Brown, a highly regarded business and...

Rich Meneghello is a partner in the firm's Portland office. He is passionate about assisting employers with their labor and employment problems in a wide variety of areas. Rich has focused much of his practice on defending and advising employers on disability discrimination issues. He has maintained this focus since 1999, when he was the lead associate attorney before the U.S. Supreme Court in the case of Albertsons v. Kirkingburg, a unanimous decision interpreting the Americans with Disabili...

Julie is a trial attorney specializing in business and real estate disputes, banking litigation, and insurance coverage disputes. She enjoys a reputation among her colleagues for success in the court room. She has long held an AV peer rating with Martindale-Hubbell. Since 2007 she has been named by her peers to the top five percent of all business litigation attorneys in the State of Oregon in the annual publication of Super Lawyers. She has also been selected by her peers for inclusion in Th...

Lorne O. Dauenhauer is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Lorne O., who practices law in Portland, Oregon, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lorne O. is held by other top lawyers in the same geographic and legal practice area.

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.

Geoffrey D. Strommer is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Geoffrey D., who practices law in Portland, Oregon, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Geoffrey D. is held by other top lawyers in the same geographic and legal practice area.