Group photo of the Slattery Peterson partners

Slattery Petersen LLC

Who We Are
With offices in Arizona and Florida, Slattery Petersen LLC is an active trial litigation boutique law firm that represents clients in all stages of litigation throughout Arizona, Florida and across the country. Above all, we are trial lawyers with experience trying highly technical cases with significant exposure to verdict on a national, regional, and local level. While we approach every case with an eye on trial, many cases do not get that far, which is why we evaluate cases and meet with clients early to best understand what a successful outcome means to our clients. We incorporate the legal skills and training typical of a large law firm with the dedication and service unique to a small boutique firm in order to provide our clients with exceptional value.


Slattery Petersen LLC partners GinaMarie Slattery, Libby Petersen and Brad Petersen all have significant trial practice as lead, first-chair trial attorneys. All three lawyers spent a considerable amount of time as partners with Snell & Wilmer L.L.P. before Slattery Petersen. Together, they spent a combined 45 years at Snell before starting at Slattery Petersen.

In 2015, Jill Covington joined Slattery Petersen LLC as a partner from another large law firm, Fennemore Craig, P.C., bringing with her a wealth of trial, litigation, and legal experience in the areas of medical negligence, board actions against health care professionals, healthcare law, managed care, and employment law.

In 2021, Dustin Lane and Vernon Marsh joined Slattery Petersen LLC as partners and opened the firm’s Miami, Florida office. Dustin and Vernon have worked at large, national law firms, where they represented international manufacturers and businesses in product liability and commercial litigation. Dustin also has corporate counsel experience as a former in-house counsel of Volkswagen Group of America and Fiat Chrysler (FCA US LLC).



We are large law firm lawyers without the large law firm overhead. Our use of technology, lean staffing, efficient case management, and internal cost structures allow us to charge reasonable rates.


From communications to billing, meeting client expectations is our goal. With various wireless devices for on-the-go communications and remote access to client files, our clients can reach us anytime and we can respond.


Diversity is important to us and our clients particularly when it comes to modern business and jury trials. Slattery Petersen qualifies as a women-owned business.

Call us to Schedule a Consultation

Meet Our Attorneys