Experts

Psychiatric Expertise for Complex Litigation

The physicians at LFPS bring extensive clinical experience, specialized forensic training, and a strong understanding of the legal standards relevant to their work.

Founder & Principal

Ian C. Lamoureux, M.D.

Ian C. Lamoureux, M.D., is a triple board-certified forensic psychiatrist with subspecialty expertise in brain injury medicine and neuropsychiatry. He is the founder of LFPS. He specializes in the rigorous evaluation of complex psychiatric issues within civil, probate, criminal, and family law matters. Dr. Lamoureux's practice is defined by a commitment to objective, evidence-based methodology and the ability to communicate sophisticated medical concepts clearly under rigorous cross-examination. He consults on high-stakes matters across multiple jurisdictions, providing counsel with careful analysis of the clinical and forensic strengths and vulnerabilities of their cases.

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Associates

Associate

Bruno Perossa, M.D.

Dr. Perossa, based in Minnesota, provides forensic consultation in family law and child psychiatric matters, with board-certified expertise in child and adolescent psychiatry, developmental context, and parent-child dynamics.

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Associate

Regan O'Brien, M.D.

Dr. O'Brien brings consult-liaison psychiatry experience to probate and guardianship matters, with expertise in capacity assessment and the careful integration of psychiatric and medical findings in the formulation of opinions.

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