Exceptional 6 unit building in premiere City centre location, (Williamsville); concrete building with Terrazzo hallways; 2x3 bedroom units; main floor unit-90 Park St; 3 bdrms, 1.5 baths is in excellent condition; tenant is month to month; second 3 bdrm is below and has 2 full baths; 4x2 bedrooms units; 5…