Mainstreet Equity Corp. engages in the acquisition, redevelopment, repositioning, and management of mid-market residential rental apartment buildings in Western Canada. The company owns a portfolio of multi-family residential properties in British Columbia, Calgary, Edmonton, Saskatoon, Regina, and Winnipeg. It invests in residential units consisting of townhouses, garden-style apartments, concrete mid-rise and high-rise apartments, and condo suites; and freestanding commercial buildings. The company is based in Calgary, Canada.