Prossin Law Firm in Grantville, San Diego provides family law, estate planning, business law, sports law, and immigration representation from Suite 102 at 6136 Mission Gorge Rd, 92120. Founding attorney Adam L. Prossin has held an active California State Bar license since 1994 and earned four degrees, culminating in a Master of Laws in Taxation from Golden Gate University that adds tax-code fluency to the firm's estate planning and trust-structuring work. Family law cases cover dissolution of marriage, child custody and visitation, spousal and child support calculations, restraining orders, guardianships, and adoptions filed through San Diego Superior Court's Family Division. Clients navigating custody transitions and co-parenting conflicts coordinate with counseling providers on the Grantville corridor, and Creative Solutions for Hope provides the therapeutic framework that family courts increasingly reference in custody evaluations. Mediation and arbitration services provide an alternative dispute resolution track for divorcing parties, business partners, and contract disputes, with Prossin serving as a neutral mediator or as counsel advocating within the process. Prossin holds dual bar admissions in California and Washington State, with the firm maintaining a second office in Issaquah, Washington, for clients with cross-state custody, business, or immigration matters. Sports law representation includes athlete agent services — Prossin is a FIBA-approved international basketball player agent and a certified agent with the Korean Basketball Federation, negotiating player contracts and endorsement agreements. Estate plans structured by the firm incorporate federal estate-tax and California income-tax implications into trust documents, gift-transfer strategies, and succession plans for business owners along the Mission Gorge Road commercial corridor. Immigration cases include family-based visa petitions, employment-based green card applications, and naturalization proceedings, and the firm coordinates with rehabilitation providers when sports-injury cases involve athlete visa holders — San Diego Physical Therapy on Mission Gorge Road generates the clinical records that satisfy USCIS status-maintenance requirements. The Mission Gorge Road office is a quarter-mile south of the Fairmount Avenue intersection, in the 92120 corridor that connects the Mission Trails Regional Park gateway to the Grantville Trolley station.