Our Team
Stephen Grebing
Steve’s multi-faceted practice encompasses real property acquisition and development, land use disputes, construction-related transactions and litigation, general civil and business litigation, legal malpractice defense and business/real property/construction transactional matters. He has handled a variety of construction claims involving breach of contract, delay, and construction defect matters. Within the construction industry, he specializes in window wall systems, having represented several large window suppliers and installers.
In addition to his real estate, construction and business practice, Steve acts as an outside general counsel to the largest federally funded health center in San Diego, advising on various corporate and medical legal compliance issues. These issues often include health care compliance, billing, licensing, Anti-Kickback Statute, Stark Law, and California Non-Profit Integrity Act issues. Steve also routinely handles the litigation arising out of the services the health center performs, including allegations of malpractice and negligent hiring/supervision, and as the health center is federally funded, he routinely works with the US Attorneys’ Office in defending against such claims.
Steve is admitted to practice in California, Nevada and Arizona, and has argued successfully before the Nevada Supreme Court. Steve is dedicated to the development of the legal profession. He has served as a member of the Board of Directors of both the San Diego County Bar Foundation and the San Diego County Bar Association and is currently a member of the executive board of the San Diego Chapter of the American Board of Trial Advocates. He also serves as a member of the Civics Learning Partnership and is a mock trial coach at Mission Bay High School. Steve is a second-generation attorney, having graduated from California Western School of Law in 1995. Before law school, Steve attended the University of Redlands (California), where he majored in Political Science and History and was a four-year varsity letterman in basketball. Martindale-Hubbell has awarded Steve an AV© Preeminent© rating (highest legal competence) and he has been listed as a Super Lawyer annually since 2013.
Mark Amador
Mark Amador is one of California’s top trial attorneys, having conducted over 100 trials in his prestigious career including numerous high-profile cases. He joined Wingert Grebing Brubaker & Walshok following a distinguished career in public service as a prosecutor in the Office of the San Diego District Attorney. Mr. Amador’s accolades include San Diego County Prosecutor of the Year (2012), California Prosecutor of the Year (2015), Distinguished National Prosecutor of the Year (2025), and two-time recipient of the prestigious FBI Director’s Award for Excellence. He was lead counsel in the longest criminal trial in San Diego Superior Court history, a 15-month multiple defendant death penalty case. Mr. Amador has secured over 25 murder convictions in jury trials. In his final case as a prosecutor in 2025, Mr. Amador successfully prosecuted a 20+ year old cold case homicide solved utilizing the cutting-edge technique of Investigative Genetic Genealogy.
Moreover, as an executive in the 6th largest prosecutorial agency in the country, Mr. Amador led the District Attorney’s Appellate and Training Division for five years, including supervision of its renown Ethics program. He is a leading expert and instructor in several components of trial advocacy, including Constitutional law, discovery, ethics, trial skills, and evidence. He regularly presents at seminars around the country on these topics. From 2023 through 2025, Mr. Amador was the Chief of New Legislation Implementation, in which role he led the gargantuan task of re-sentencing thousands of offenders based on new laws enacted in California.
Mr. Amador’s trial skills and jury experience are invaluable assets to our firm’s general civil litigation and trial practice. As such, his expertise litigating matters of legal ethics, procedure and the rules of professional conduct distinctly position him to continue Wingert Grebing Brubaker & Walshok’s storied tradition of legal malpractice defense.