James P. "Jim" O'Connor

Shannon Lea Armstrong is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Shannon Lea, 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 Shannon Lea 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...

Nick is a trial lawyer with a practice focused primarily on defending product liability and legal malpractice claims. Despite practicing in the age of the “vanishing civil jury trial,” Nick has tried more than a dozen cases in state and federal court. Nick serves as the Chair of Cosgrave’s Product Liability & Medical Device Practice Group. As a product liability attorney, he primarily defends product manufacturers and resellers of a wide range of industrial and consumer ...

With more than 30 years of experience working on commercial finance, real estate and creditors’ rights matters, Susan Alterman focuses her practice on commercial banking and complex real estate transactions. She assists a variety of financial institutions and real estate investors in structuring real estate and asset-based credit facilities, including loan documentation, underwriting considerations, and regulatory matters. Susan regularly represents banks and other financial institution...

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...

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

Heidi Mandt is an accomplished trial attorney with a practice focused on defending clients in product liability, professional malpractice (including medical and other licensed professionals), toxic torts, and general insurance matters. She also advises and represents clients in insurance coverage disputes. Over her career, Heidi has tried more than 20 cases to verdict in both state and federal courts, involving claims ranging from product liability and personal injury to complex commercial di...

Tara's practice emphasizes bankruptcy, creditors' rights, and commercial litigation. She represents all types of parties in all types of bankruptcy matters including unsecured creditors' committees, business debtors in reorganization proceedings, creditors including banks and other financial service providers, bankruptcy trustees and receivers. She protects clients' interests and represents them on a national level in multiple bankruptcy jurisdictions. Tara is certified by the American Board ...

Troy Bundy defends professionals, including dentists, hospitals, doctors, nurses and other health professionals. From complex obstetric and neonatal matters to more routine primary care issues, Troy has litigated and tried a wide variety of professional liability cases involving nearly every conceivable medical specialty over the course of his career, including the landmark birth injury case, Klutschkowski v. OMG. Dental cases have included lingual nerve injuries, TMJ claims, and endodontic c...

Tom Grim is a partner of the firm and focuses his practice primarily on energy and public utility law. Mr. Grim represents clients in commercial transactions, administrative contested cases and judicial proceedings. Tom chaired the firm's energy practice group and has significant experience in all areas of energy law, including the following recent matters: Represents public utility clients as general counsel in all legal matters relating to the utility. Represented a public utility in the jo...