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.

Joshua Barton is a trial lawyer with experience handling catastrophic personal injury, wrongful death, medical malpractice and other cases defending the rights of people who have been injured by other’s negligence. As a founding partner at CalderonBarton, he is committed to helping individuals who would otherwise be intimidated and overwhelmed by the legal system. Mr. Barton takes pride in helping people get the results they are seeking, both in monetary justice and systemic improvements to corporate culture. He leads the firm’s efforts to be “Trial Ready & Tech Savvy” using technology to improve clients’ overall experience working with lawyers by investing in leading-edge software that makes responding to client Mr. Barton’s experience as a trial lawyer began in law school when he volunteered with the Ninth Circuit Pro Bono Appellate Project where he argued before the Ninth Circuit Court of Appeals. He also volunteered as a student prosecutor for the City of Tucson, including trial experience prosecuting misdemeanor trials in Tucson. Mr. Barton was a member of the University of Arizona’s trial advocacy team, where he won the competition’s regional championship. In 2015, he began practicing at a large national law firm with an excellent reputation for trial advocacy successfully representing clients in high-stakes plaintiff’s litigation. Joshua gained valuable experience litigating personal injury cases by working on a wide variety of cases, from initial client intake through discovery, deposition, settlement negotiations and preparing for trial. That experience and his commitment to a laser-like focus on serving clients’ needs with direct, responsive and personalized service lead him to found CalderonBarton.

Alison Briggs is very knowledgeable and efficient. She really cares about her clients needs. No situation is ever too difficult for her to handle. Miss Briggs offers appointments that will fit around your schedule, and will accommodate you wherever she can. Attorney Alison Briggs is an Arizona Bar Licensed attorney in Good Standing practicing law throughout Arizona. Alison, a Massachusetts native, grew up on the East Coast. She received a Bachelor degree from the University of Massachusetts Amherst. Alison went on receive a Masters in Social Work from Salem State university in Salem, Massachusetts. Alison is a Licensed Certified Social Worker. In her spare time,

Mr. Holzer became licensed in the State of Arizona in December of 2007. In January of 2008 he began working for Wattel and York, LLC (“Wattel and York”) a firm specializing in personal injury claims. There, Mr. Holzer engaged in all aspects of litigating personal injury claims, including discovery, conducting and defending depositions, arbitrations, settlement conferences, mediations, motion practice, and post-settlement lien resolution and settlement disbursements. Mr. Holzer also tried several jury trials as either first or second chair. Mr. Holzer routinely oversaw over one hundred litigation cases at a time, supervising a dozen paralegals/support staff. In 2011, Mr. Holzer successfully argued in front of the Arizona, establishing legal precedent related to the ability for accidentvictims to seek a claim for diminished value. In January of 2012, Mr. Holzer left Wattel and York to become in-house counsel, COO, and CFO of National Health Finance, LLC, (“NHF”), where Mr. Holzer oversaw the day-to-day operations of a company engaged in the purchase of medical debt related to personal injury patients treated on a lien basis. When Mr. Holzer started with NHF, the company had a total of seven employees, and just over 10mm in open accounts receivable. Over the next four years, Mr. Holzer helped grow the company to over 120mm in open accounts receivable and twenty-five employees, including a robust legal department. Mr. Holzer’s duties as CFO included monthly financial reconciliation and reporting to the bank, and yearly audit compliance. After successfully guiding NHF to partial equity sale in the first half of 2016, Mr. Holzer left NHF to start his own personal injury firm, as well as a successful consulting business providing services to medical providers that treat personal injury patients in Texas, Florida, Michigan, New Jersey, New York, and Pennsylvania. At his law firm, Mr.Holzer has been in charge of all aspects of pursuing claims, including the administration and oversight of the law firm’s operating and IOLTA accounts. Over the last sixteen years, Mr. Holzer has gained invaluable knowledge and experience in both how to properly pursue a personal injury claim, as well as how to run a successful business. His financial experience, as well as experience working with medical providers to enforce medical liens and pursue payment of medical debt will complement the knowledge and experience of Mr. Colcord in order to provide key insight and advantage for clients of the ABS.