How to structure a deal

[Dominic Battezzato]

Hello everyone, 

I am in the middle of a deal right now I was hoping I could get some insight on the best way to structure it. My friend and I are looking to go into buying a townhouse together from a lady that wants to release it back from us. We are going in at 355K and she is willing to pay 2500 in rent. Based on how much she can pay in rent with a 4.5% interest rate what would be the best way to structure our downpayment. Put enough so rent covers mortgage or put more down to cash flow, 30 year mortgage or 15 year with more?? Thank you. 

Tough to right all the details out but let me know if you have any questions, much appreciated