How can I make this deal happen?

[Justin Pera]

I’m looking at a 4 unit townhome in Tampa, Fl. Total cost is 800-900k. My income is 110-150 a year. Downpayment 50k. 

How does projected rent work into a mortgage loan for a property like this? I would live in one and rent the other 3. 

I believe the other 3 units can rent for up to 2,400 each.

Is this deal attainable with my current situation or am I in over my head. 

Thanks in advance,