At 1830 hours we were alerted for a motor vehicle accident at Main St. and Walgrove Ave. Upon arrival, Squad 414 found a vehicle into an assisted living residence with a gas leak. The incident was immediately upgraded to a full first alarm with additional medic units. Several people were transported to local hospitals. The remaining residents of the assisted living were relocated to another facility.  We were assisted by units from Glyndon VFD, Engine 56 Owings Mills VFD, Engine 19, Liberty Rd VFD and Arcadia VFD.