What is the best format to present deal analysis?

[Joe Rodriguez]

Hello BP. 

I am so grateful for the collective knowledge that all of you folks bring to BP. Being a PRO member is absolutely worth every penny. A co-worker is selling her duplex and I have expressed interest in purchasing it. She is absolutely in favor of a lease with purchase option. However, the home is owned free and clear and I would like to propose seller financing instead as an alternative. Like I said, I'm a newbie here and this happens to be my first opportunity at a zero, or low money down deal but I am not sure how to present the deal for your opinions. What pertinent details should I provide here in order to analyze the deal?