Business Litigation


Protecting the empire you built.

Real Estate Litigation


Commercial and residential representation.

Tort Litigation


Representing those who have been harmed.


Who We Are

Duncan Peterson LLP practices in all aspects of civil litigation, with an emphasis on business, financial institutions, real estate and tort/injury litigation matters. The firm proudly provides legal services in California, New Mexico, and Arizona.


Duncan Peterson was founded in 2017, by attorneys with several decades of combined experience. Duncan Peterson attorneys have a proven track record of success in jury and bench trials, and recognition from the legal community that includes a Martindale-Hubbell AV rating for the firm’s managing litigation partner. From its inception, the firm has prided itself on exceeding client expectations by providing comprehensive legal strategies for business entities and individual clients. Our team of attorneys brings a broad range of professional experience and perspectives to each matter, ensuring that all clients receive dedicated legal advice towards a successful resolution of their case. In any matter, whether it be a negotiation to avoid the necessity of court filing, trial litigation, or post-trial appellate practice, we prioritize clear and candid communication that places the client’s interests first. This approach is essential to our clients’ success and leads to lasting professional relationships with our valued clients.

Our Practice Areas:

Civil Litigation

Business Litigation

Commercial Litigation

Real Estate Litigation

Financial Institutional/Loan Servicing Industry

Contracts and Transactional Business matters

Civil Appellate Litigation

Tort/Injury Litigation

Martindale-Hubble rating