About Duncan Archie
Duncan Archie Peterson built his legal foundation across three institutions in two countries. He earned a Bachelor of Arts at Strathclyde University in Scotland, followed by a Master of Science at New York University. He completed his legal training with a J.D. from Brooklyn Law School. That combination of international undergraduate study, a technical graduate degree and a New York law degree shapes the way he approaches cases.
He practices in New York. His career has been based at PetersonDelleCave LLP, where he has handled matters that require both courtroom preparation and careful transactional handling. Colleagues describe him as methodical in research and clear in written work. He favors plain language in motion papers and contracts, and he prepares clients for the practical realities of litigation and negotiation.
Peterson’s early years in practice were spent learning the mechanics of case management and courtroom procedure. Over time he took on more complex files that required coordinating experts, managing discovery, and drafting detailed pleadings. He has worked on matters that span pretrial litigation, contested hearings and settlement discussions. He is comfortable in depositions and at the negotiating table.
Education remains an anchor for him. He teaches new associates how to structure legal arguments and how to present factual narratives that judges can follow. He also contributes to internal firm training on legal writing and trial preparation. His M.S. background informs a practical approach to evidence and technical documents, which clients often find useful when cases involve specialized information.
Clients and colleagues see Peterson as steady under pressure. He does not court headlines. Instead he focuses on steady preparation and clear lines of communication. That approach has informed his choices on which matters to accept and how to present them. He consistently emphasizes practical remedies and measurable outcomes in his advice.
Outside the office, he keeps ties to the legal community in New York. He attends continuing legal education and participates in firm-sponsored pro bono efforts when the opportunity matches his experience. He balances a busy caseload with mentoring responsibilities for junior lawyers at the firm.
Today he continues to practice at PetersonDelleCave LLP in New York. His current work centers on courtroom advocacy, case strategy and drafting precise legal documents for clients in the state.
