Just search FB Marketplace.

Then I would shop locally first - they will have best rates 

You will hire 2-3 of the wrong contractors also and lose 10-15k in walkway money.Your first try should be to do a flip as a smaller partner with someone else, a friend, a local investor from a meetup, so you can learn the ropes, know how to manage a crew, etc.

Can have a local attorney draw one up 

Either way, from this point forward provide the best experience possible to your guests so that you can bury the bad reviews with more good ones- most guests won't bother to search back that far. 

What are the local regulations to be aware of?

If it were me, I'd search the net for title attorneys, preferably in the county where the property is located.In my opinion, the onus is on the third party to prove up the terms of the agreement. 

It’s always a good idea to visit the areas, connect with local real estate experts, and really get a feel for the market dynamics.

Most of the local title companies can help you close the deal.

Have you explored the local market?