Plus, if you have experience in the field, you could/would/should want to write your own anyway, right?

We all wait with bated breath for the extensive thank you note they will write on their way out.

I think its a matter of how you build it and its functionality. 

You start with a purchase and sale agreement and reduce everything to writing.

All seasoned investors know who to run the deal by before they write and that person would always fit my five point definition of a deal killer.

Part of the motivation for congress writing Dodd Frank was to clamp down on the investors offering preditory terms re  rent to own and seller financing and that view has carried into craigslist rent to own adds and you say zillow. 

First person I hired, I also had them write their own job procedures and so on.

I’ve heard we can write off or deduct 3/4 of the mortgage interest, house insurance, and repairs.

You write an offer. 

I use a spreadsheet I developed to determine my entry costs, carrying costs, cash flow, tax write offs, appreciation and exit costs.