Contracts for off market deals

[Edward Moore]

I am looking for someone who can write a generic contract for both off-market deals, and owner finance deals. Essentially something I can "plug and play" by changing a few pieces of the seller's information for each transaction. I talked to the attorney who handled creating my entities and wrote some contracts for my flipping business. But he doesn't seem to grasp what I am looking for here. Can someone assist in who I should be reaching out to? 

Thank you!