The cancelation contract stated they would refund my deposits in 6 months or if another buyer bought the contract for the properties. 

Find a real estate attorney in your area, ask them to draft a contract for you, if that's what you want. 

Once you go under contract, (here in Texas) fine a title company that works fast that you can trust, even before the contract is assigned know if they work with wholesalers and how they can help you.

Well anyone can write anything into a contract, but whether it is legal and enforceable is for the courts to decide...It is State law here that a contractor must call 811 or they are liable for the costs.

How about a sales contract with contingencies but with a limit where the buyer can only terminate the contract if their find material defects exceeding a certain dollar amount.

I am under contract for a property out in Columbus and they are one of the few property management companies I am considering going with! 

Are you in the market for contracting work, or are you doing your own projects?

This also leads owners to ASSUME simpler is better when it comes to management contracts.

Open ended contracts, particularly verbal ones, usually end badly.

Some types of Creative Financing include: Seller/Owner Financing, Land Contract, Wrap, Assumption, Subto, Lease Option, Contract for Deed.