What’s a good return rate for commercial units in NY,Queens?

[J C]

I’m possibly looking to purchase a multi-unit (6+) rent stabilized building in a hot area. Right now I’m looking at a 6.5% return on asset based on income/asking price. There are no other expenses (boiler replacement, rooftop leaks, etc…), other than closing fees and lawyer fees. Equity would be about 40% and debt would be 60%. I would be getting cash flow from the units from day 1as all units are already filled. Please advise..Thank you.

Another mention is this building is particular old, at around 90+ years since it's a pre-war building.