Gregory Glassman entered California real estate in 1984 at age 23, trained under legendary San Diego broker Saul Klein, and now runs Gregory Glassman & Associates from the 920 Fort Stockton Drive office in Mission Hills 92103 as Broker-Owner. The practice specializes in homes designed by mid-century San Diego architects Homer Delawie, Lloyd Ruocco, and Henry Hester, the canyon-rim modernist inventory where provenance documentation affects appraisal more than square footage, the same era DEVIE studio references for contemporary Mission Hills projects. A formative run at Marcus & Millichap and Commercial Investment Services built the investment-analysis foundation that Glassman still applies to metro 92103 small-multifamily and mixed-use transactions today. A 15-plus-year tenure at Scott & Quinn in Mission Hills under mentor Jim Scott, followed by a 2014 move to Ascent Real Estate, gives Glassman deep comparative pricing history across Rancho Santa Fe, La Jolla, Del Mar, Point Loma, University Heights, North Park, Kensington, Mount Helix, Encinitas, and Cardiff. Pre-listing architectural verification for Delawie or Ruocco-designed homes routes through Hillcrest design practice ACI Architectural Concepts Inc to document period-correct elements before listing photography is scheduled. The highest-value engagements involve verified Homer Delawie, Lloyd Ruocco, or Henry Hester homes where provenance research, Historical Resources Board eligibility, and period-restoration conflicts with Mills Act compliance all have to be resolved inside a single listing cycle.