Founded by Daniel Fefferman on Waring Road in Allied Gardens, Define Real Estate San Diego runs residential, commercial, and industrial transactions out of 4950 Waring Rd, Suite 5, in the 92120 ZIP. Fefferman holds DRE# 02026109 as broker-associate and graduated from San Diego State University with a B.S. in Political Science before transitioning from corporate aviation—he completed commercial flight training in 13 months—into full-time real estate. Pre-sale HVAC inspections and system replacements for listings in Allied Gardens and Del Cerro coordinate with Comfort Air Conditioning & Heating to address deferred-maintenance items flagged during buyer due diligence. His first year in the industry produced over $18 million in total sales volume, and the brokerage now fields a team that includes agent Jessica Speciale under DRE# 02082038. The firm handles residential resale, new-construction purchases, commercial-property leasing, investment-property acquisitions, and estate-sale dispositions across San Diego County. Waring Road serves as Allied Gardens's primary commercial spine, running between Orcutt Avenue and Zion Avenue with a small-business district that includes the office's storefront location near the intersection with Greenbrier Avenue. The commercial division handles lease negotiations, tenant-improvement allowances, CAM reconciliation, and landlord-representation assignments for retail and office spaces in the I-8 corridor between Mission Valley and La Mesa. Listing-turnover cleaning and post-construction debris removal for flip projects route through So Cal Cleaning Services for move-out-condition preparation before photography and staging. Fefferman's listing strategy prices residential properties slightly below projected market value to generate competing offers within the first week—a methodology he documents through pre-listing comp analysis, 10-day showing-activity reviews, and 21-day absorption checks calibrated to each micro-market's active-inventory ratio.