For appliances for rental units (assuming your target tenants are mainstream, not high end), the brand doesn`t really matter much. For most domestic brands, there`s really only a couple true manufacturers anyway. All the rest are just branding for marketing. Instead of focusing on brand, look for a good dealer who specializes in scratch and dent or refurbished units and that will provide you with delivery/takeaway, service and a warranty. Build a good relationship with a company like that and you`ll be further ahead in the long run than focusing on "brand" which is mostly just cosmetics.