Joseph Martineau is a practicing lawyer in the state of Arizona. Attorney Martineau received his J.D. from the Brigham Young University, J. Reuben Clark Law School in 1976.

Family law attorney Natalie L. Mathews had been in practice for 17 years when she joined Stewart Law Group as partner in 2021. She’s high energy but reserved and a keen observer. Natalie brings zealous advocacy and compassion to every client’s legal matter, whether the case is straightforward or complex. Always eager to collaborate, she loves brainstorming with colleagues – exchanging ideas and sharing professional experiences – in a concerted effort to help clients by implementing winning legal strategies and litigation tactics. A proponent of settlement whenever it’s possible, Natalie’s creative legal mind is always working on outside-the-box solutions to clients’ problems. Natalie is definitely a team player, and not just at the office. This Phoenix native is a lifelong competitive swimmer and a serious runner, competing in ultra-marathons and trail races. She has tested her mettle in the Ultra-marathon (Antelope Canyon), Half Dome (Yosemite), Rim2Rim (Grand Canyon), Imogene Pass (Ouray and Telluride), and national Ragnar relay races, among others. With four children under the age of 14 (including a set of twins), one rescue dog and two cats, instead of slowing down she simply picked up the pace.