Known throughout East County as The Santee Guy, John Olsen holds California DRE license #01374369 and has represented buyers and sellers in Santee since the mid-2000s through Mission Realty Group at 278 Town Center Parkway. His practice covers first-time purchasers, VA-qualified military buyers, and downsizing clients across the 92071 ZIP, with purchase financing often routed through John Aguirre Home Loans on Hartley Road for conventional and government-backed loan programs. Olsen's hyperlocal Santee focus spans the Mission Gorge Road corridor from Santee Trolley Square east to the Carlton Hills subdivisions near Santee Lakes Recreation Preserve, and his commercial-transaction capability extends to investment properties and multi-unit buildings along Cuyamaca Street. Active community involvement through the Santee Update social media channel and East County Chamber of Commerce fundraising generates market intelligence that feeds listing-price calibration, and title and contract disputes are handled in coordination with Wedeking Law on Cuyamaca Street. Olsen's transaction history encompasses single-family resales, new-construction closings, and VA-assumption transfers across Santee's Cowles Mountain foothills and the Mast Park residential pockets.