Who We Are

GillespieShields was founded in 1985 by attorney DeeAn Gillespie Strub. In the 33 years since, the firm has grown to seven practice areas and two locations.

Our firm is comprised of an exceptional team of Phoenix and Mesa attorneys, paralegals, and support staff. We are prepared to work for you with determination, honesty, and integrity.

We know that each of our clients face unique challenges and we strive to minimize the time and cost to you while advocating for your best interests.

We are dedicated to being the legal team you need.

We are GillespieShields.

Your Legal Team.

Meet Our Legal Team

The attorneys at GillespieShields are well-versed in a variety of different legal fields, ranging from family law to civil suits, employment disputes and probate cases. Our Phoenix and Mesa lawyers have the knowledge and experience required to help our clients navigate the complex legal system. Above all, we believe in advocating for our clients with honesty and integrity. We work diligently to help resolve our clients’ legal matters.

deean gillespie phoenix and mesa attorney

DeeAn Gillespie Strub

Founder & Owner

Family Law

Nothing excites DeeAn more than helping people and families, especially those who unfairly find themselves in a challenging legal situation. Known for her compassion and determination, DeeAn cares deeply about her clients and has the courage and competence to help them.

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mark shields phoenix and mesa attorney

Mark Shields


Appellate Law, Civil Law, Family Law

Because a family law issue is so important and so personal, it should be handled by someone who cares. Mark believes that being down to earth and an honest, approachable guy is just as important in the practice of law as it is in life in general.

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wayne taylor phoenix and mesa attorney

Wayne H. Taylor


Probate Law
Wayne is a personable, experienced, down-to-earth attorney, who listens carefully to his clients’ needs and works tirelessly with them towards the achievement of their reasonable legal goals. As he sees it, Wayne’s duty as an attorney is to use his legal knowledge to make life a little fairer for his clients.

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Marco Costa

Marco Costa


Employment Law, Immigration Law

Born and raised in Milan, Italy, Mr. Costa is an international attorney knowledgeable in both U.S. and Italian law. He obtained his Italian law degree at the University of Pavia. After practicing for several years in Milan, he moved to Arizona in 2009 where he earned his JD at the University of Arizona. He serves as general counsel for the Italian Association in Scottsdale.

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John Foley

John Foley


Civil Law, Criminal Law

John has been in litigation for over 40 years. During his time in Arizona , he has been a civil litigator, dependency trial attorney and worked a year for the Pinal County Attorney. For that period he was the supervisor of the Juvenile Delinquency Unit and worked in the Major Crimes Unit.

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jeffrey mccombs phoenix and mesa attorney

Jeffrey McCombs


Family Law

Jeffrey has a pragmatic and realistic approach towards the practice of law and is dedicated to helping people in their time of need. He strives earnestly to help the parties cooperate to achieve a better outcome than they would have otherwise achieved through conflict alone.

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Jenny Jansch

Jenny Jansch


Civil Law

Jenny Jansch was born and raised in Phoenix, Arizona. She is a married mother of three children. She received her Bachelor of Arts cum laude, in Paralegal Studies from McMurry University in Abilene, Texas. She received her law degree in 2006 from the Thomas M. Cooley School of Law and received numerous awards for her legal writing and advocacy skills.

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Robert Newell phoenix and mesa attorney

Robert O. Newell


Criminal Law, Family Law

Robert believes in weighing every option and exploring every potential solution to his clients’ legal troubles. He does everything in his power to give them the best options to choose from, and advises his clients as they make the final decisions on how to proceed.

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Kevin O'Brien, QDRO Attorney

Kevin O’Brien II



Kevin O’Brien holds an undergraduate degree in strategic intelligence from Patrick Henry College and a Juris Doctor from Arizona State University. He passed the bar during his final year of law school. Initially drawn to the business sector, Kevin found his true calling in helping individuals navigate one of life’s most challenging moments—divorce. He now specializes exclusively in the preparation of Qualified Domestic Relations Orders (QDROs), handling the division of various retirement plans such as private pensions, military retired pay, multiple state and private retirement systems, IRAs, and a variety of investment accounts.

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