Got a minute? Want to do a quick “back of napkin”/”back of the envelope” analysis on purchasing an income-producing rental property? Below is a run of our free Multi-family Apartment Building Acquisition Back Of The Envelope Model. You can run this analysis with only 15-20 inputs in about 60 seconds. It’s easy – just start at the top and replace all bold blue inputs with the relevant values for your deal. These models are a great first pass “smell test” – no more wasting time studying cruddy deals. In this one I have solved for a 7% going-in cap rate by adjusting the Purchase Price downward from the asking price on the flyer.