About
Peter C. Diamond is a shareholder at Schulte Anderson in Portland, Oregon, whose practice focuses on family law. Diamond represents clients in high-asset divorce, complex custody disputes, grandparent rights, domestic partnerships, guardianships, parenting time and support modifications, enforcement actions, premarital agreements, and collaborative divorce. He approaches family law matters with an emphasis on practical problem-solving and efficient resolution through collaboration, negotiation, mediation, or trial when necessary.
Diamond earned his J.D. from Willamette University College of Law in 1992 and a B.A. from the University of Colorado in 1984. His legal background also includes earlier work in business, real estate, estate planning, and general litigation. That broader experience supports his ability to evaluate family law matters involving property, financial interests, agreements, and other issues that may overlap with business or estate planning concerns.
Diamond handles a range of contested and negotiated family law matters, including complex divorce, custody and parenting time disputes, child and spousal support modifications, judgment modifications, premarital and post-marital agreements, and domestic partnership issues. His practice also includes collaborative divorce, allowing clients to pursue settlement-oriented solutions when appropriate. Through these matters, he helps clients assess legal options, understand potential consequences, and work toward practical resolutions tailored to their family circumstances.
Peter C. Diamond is a Fellow of the American Academy of Matrimonial Lawyers and is one of only 19 Oregon lawyers currently listed by the firm as members of the organization. He is also Martindale-Hubbell Distinguished Peer Rated for High Professional Achievement and has presented at bar educational events. Diamond belongs to the Multnomah and Clackamas County bar associations and serves on the Clackamas County Subcommittee of the State Family Law Advisory Council.
Law Office Affiliations
- Shareholder, Schulte, Anderson, Downes, Aronson & Bittner, P.C.
- Member, Oregon State Bar
- Member, Clackamas County Bar Association
- Member, Multnomah County Bar Association
- Fellow, American Academy of Matrimonial Lawyers (AAML)
- Member, Clackamas County Subcommittee of the State Family Law Advisory Council
Licensed State
- Oregon
Education
- Willamette University College of Law
Juris Doctor (JD) - University of Colorado
Bachelor of Arts
Awards & Badges




- Alimony
- Child Custody
- Child Support
- Divorce & Separation
- Guardianship
- Marriage & Prenuptial Agreements
- Mediation & Collaborative Law
- Paternity
- Appeals
- Litigation




