Best Lawyers Ones to Watch

Attorney
Hayley MacMillen
Hayley MacMillen brings to GMSR experience representing clients in all stages of civil and administrative litigation, including at trial.  Her litigation expertise informs her detail-oriented approach to the appeals process. Before joining GMSR, Hayley clerked for Judge Gabriel Sanchez of the United States Court of
“Best Lawyers®” Recognizes GMSR Lawyers For Appellate Practice

Greines, Martin, Stein & Richland LLP is proud to have 12 lawyers listed in the 2025 edition of the peer-reviewed The Best Lawyers in America® for Appellate Practice, and 3 lawyers listed as Best Lawyers: Ones to Watch®. Best Lawyers® recognized the following GMSR lawyers:

Who We Serve

PUBLIC ENTITIES

Whether on appeal, assisting trial counsel, or advising government officials contemplating legislative action, GMSR provides unique insight into the complex laws that impact public entities.

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INSURERS

GMSR represents insurers on appeal effectively and efficiently.  We also collaborate with our clients and trial counsel on strategy for coverage, contribution and bad faith litigation before appeals begin.

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BUSINESSES

GMSR offers corporate clients objective assessments on appeal, based on a deep understanding of the limitations and opportunities of appellate review.

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TRIAL COUNSEL

The firm’s lawyers are team players, collaborating with trial counsel at any level from legal strategy to writing or editing trial court motions and appellate briefs.

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INDIVIDUALS

GMSR vigorously advocates the rights of individual plaintiffs and defendants, in both state and federal appellate courts.

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COMMUNITY PRO BONO

As part of GMSR’s long-standing commitment to social justice and equality, GMSR provides pro bono appellate services to individuals and to community organizations on issues of concern.

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