John received a B.A. from California Polytechnic State University at San Luis Obispo in 1985. He received his J.D. from Loyola Law School in 1989. In 1989, he worked in a Los Angeles based law firm of 80 attorneys specializing in insurance coverage and insurance defense. In 1991, Mr. Zanghi relocated to the Bay Area and began practicing landlord-tenant law representing owners of rent controlled residential properties. In 1995, Mr. Zanghi started his own office with a focus on the representation of property management companies with market rate and subsidized housing portfolios. In 2004, John Zanghi, Francisco Torres, and Paul Arshawsky formed Zanghi Torres Arshawsky LLP which then became Zanghi Torres Adams LLP. Mr. Zanghi has taught MCLE classes related to landlord-tenant law and also given property management seminars for non-profit and subsidizing housing providers and managers. Mr. Zanghi has also been a guest panelist on KALW’s legal rights programs. Mr. Zanghi has represented The John Stewart Company, Caritas Management Corporation and Conard House, Incorporated for more than three decades relative to their property management of residential rental units with subsidized and market rate tenancies. Outside of work, John enjoys mountain biking, archery and reading modern fiction.
Francisco is a founding partner of Zanghi Torres Arshawsky LLP. Mr. Torres has been an accomplished litigator for more than 25 years. Mr. Torres began his legal career as a Deputy District Attorney in the Kern County District Attorney’s Office. Since leaving the Kern County District Attorney’s Office, Mr. Torres’ practice has evolved to focus on cases involving landlord-tenant laws in the San Francisco Bay Area. Mr. Torres primarily represents landlords, real estate investors, local housing authorities, and property management companies. Mr. Torres is a frequent lecturer on topics involving property management, landlord-tenant law, evictions, and fair housing laws. Mr. Torres has appeared as a guest speaker on the “Your Legal Rights” radio program heard on Public Radio station KALW 91.7 in San Francisco. Mr. Torres is currently on the Board of Directors of the Affordable Housing Management Association of Northern California and Hawaii (AHMA-NCH). Mr. Torres received his law degree from the University of California, Hastings College of Law. He received his Bachelors of Arts degree from the University of California at Los Angeles.
Ms. Adams graduated from West Virginia University with a B.A. in Political Science. Then, after working with a non-profit legal organization in Washington, D.C., Ms. Adams relocated to San Francisco where she received her Juris Doctorate from Golden Gate University, graduating with a Public Interest Law Specialization Certificate with Distinction. In 2004, she was admitted to the State Bar of California, and then to the United States District Court for the Northern, Eastern, and Central Districts of California. In 2006, she was admitted to practice in the United States Court of Appeals for the Ninth Circuit. Ms. Adams has litigated in state and federal courts throughout California in the areas of landlord-tenant law, real property, bankruptcy, disability rights, and employment law. Ms. Adams joined Zanghi Torres Arshawsky LLP in 2016 and became a partner of Zanghi Torres Adams LLP in 2025. Ms. Adams litigates landlord-tenant matters on behalf of property owners and property management companies, with an emphasis on federal, state and local affordable housing programs and residential rent control ordinances.
Omar Vaquero earned his Juris Doctor degree from the University of California, Hastings College of the Law, where he served as Staff Editor and the Executive Articles Editor of the Hastings Science and Technology Law Journal. Omar Vaquero was admitted into the California State Bar in November 2017. Omar Vaquero has focused his practice on real estate law, specifically, on representing landlords. Prior to joining Zanghi Torres Arshawsky LLP, Omar Vaquero, while in law school, worked at Fried & Williams as a Law Clerk, where he gained experience in representing owners of real property. While at Hastings, Omar Vaquero interned at Startup Policy Lab and worked on the legal engine of Canaree.io, an online legal tool that offers companies guidance on how to engage with law enforcement agencies once they receive a data request. Omar Vaquero also participated in the Startup Legal Garage, where he assisted start-ups with handling legal issues related to IP and securities regulations. Mr. Vaquero is a Senior Associate with Zanghi Torres Adams LLP and has been with the firm since 2017. Mr. Vaquero’s practice focuses on all aspects of landlord-tenant litigation and property management and has successfully represented Zanghi Torres Adams LLP’s clients in all aspects of litigation including bench and jury trials throughout the Bay Area.
Nicholas has been an associate with Zanghi Torres Adams LLP since October of 2022. Nicholas specializes in landlord-tenant litigation and has represented both market rate and non-profit housing providers in court and administrative hearings. In 2017, Nicholas received a B.A. from Willamette University with a major in history and a minor in economics. After earning his Juris Doctor degree from University of San Francisco School of Law, Nicholas was admitted to the California State Bar in 2022. While at USF School of Law, Nicholas participated in the Internet and IP Justice Clinic, representing individuals and small business’s seeking to enforce trademark and internet domain name rights. Nicholas also externed with the California Tax Appeals Assistance Program, where he provided free legal services to lower and middle-income taxpayers in need of assistance. In his spare time, Nicholas enjoys cooking, woodworking, and hiking in the Bay Area with his two dogs.
Graham graduated from UC Berkeley in 2020 with a B.A. in political science and received his J.D. degree from Georgetown Law in 2024. During law school, Graham worked at the Responsible Minerals Initiative, an industry consortium dedicated to preventing human rights abuses in resource supply chains, and at Healthcare Legal Solutions LLC, where he maintained a high rate of collection for his hospital clients. He also interned at the Alaska State Department of Law in Anchorage, where he analyzed equal protection issues arising under state constitutional law. Since receiving his California State Bar membership in early 2025, Graham has worked as an associate at Zanghi Torres Adams, LLP. Graham has a passion for property law and related policy, as well as an interest in urban design and development. In his spare time, he enjoys hiking, writing fiction, playing the piano, and film.
Jak Marquez, a founding partner of Dowling & Marquez, became of counsel to Zanghi Torres Adams LLP in 2025. Jak is a seasoned trial attorney representing landlords, owners, property managers and asset managers in San Francisco and throughout the San Francisco Bay Area. Jak has represented property owners and landlords in real estate, land-use and landlord-tenant matters for nearly three decades. Jak advises commercial and residential property owners in all aspects of real estate matters, including leasing, tenant disputes and litigation, as well as tenant default evictions (nonpayment, illegal use, lease violation), post-foreclosure evictions, Ellis Act evictions, owner move-in (OMI) and qualified relative move in (QRMI) evictions. Jak advises clients on acquisition, management, sales and disposition of real property He has handled matters involving disputes under most of the California residential rent control ordinances, including the San Francisco Rent Control Ordinance, the Berkeley Rent Control Ordinance and the Oakland Rent Control Ordinance. He has successfully resolved evictions and other tenant related disputes for landlords in hundreds of cases. Jak is pragmatic and practical and strives to achieve efficient results for his clients.
Kevin Greenquist attended the University of Colorado and received his B.A. in Political Science in 1993. He then attended the Widener University School of Law in Wilmington, Delaware where he studied under then Senator Joseph Biden and received his Juris Doctorate in 1996. For the past fifteen years, Mr. Greenquist has worked primarily in the field of real property law. Mr. Greenquist began working at Wiegel & Fried in 2002 as an associate attorney and later with the Wiegel Law Group, plc. He primarily focused on real estate litigation, including commercial and residential unlawful detainers, buyer and seller disputes, partition actions, wrongful eviction defense, class actions, mold litigation, title encumbrance disputes and planning commission appeals. In 2003, Mr. Greenquist took a break from litigation and returned to Colorado to form a title insurance and title research company. Mr. Greenquist is now of counsel to Zanghi, Torres, Arshawsky, LLP and continues to focus his practice on real property disputes in San Francisco.
ZTA has close working relationships with several attorneys with whom we associate on a case-by-case basis in matters involving Appeals, Writs, Bankruptcy, Creditor’s Rights, Anti-SLAAP Motions, and Land Use Law.
At Dowling & Marquez, LLP, our lawyers focus specifically on real estate and landlord-tenant law. By dedicating our practice to real estate matters, we can provide affordable quality advice and representation in a cost-effective fashion. Our experienced landlord-tenant law attorneys have earned a solid reputation for thorough and effective representation of their clients throughout the San Francisco Bay Area.