You put a sign up and contact dirt contractors and tell them they can drop off "Clean" dirt there. 

I understand that it's best to have a buyer ready to pay cash for the property before you sign a contract with seller, but is it a viable option in the real world we live in?

As for costs, you can decide what you want to do there, but again, put it in writing and signed by the tenant. 

They may counteroffer or request modifications to the conditions outlined.Documentation: Ensure all parties sign and agree to the terms of the offer in writing.

Post a sign limiting them to 6 hours or something, and enforce it (ie, call the tow truck company whose sign you have posted) at 24 hours.For the self-help detailing products to put in the vending machine, google search "what extra things do i need to detail my car" and read some car detailing guru's list that you should quickly find (if the post has a bunch of upvotes from other car detailing gurus, that's probably a good sign).

You'll want to gather up the Articles of Incorporation, The Bylaws (signed and executed), The Certificate of Standing, and the IRS SS-4 form where you got your Tax ID.

I found a sign-up for an earlier iteration of this scheme--same benefits, wayyy less cost.

If yes, what are alternative methods to tap into its real estate equity after signing a multi-year lease with an operator? 

It also required a second party, such as an attorney, in order to introduce anonymity since they will need to sign as the nominee trustee.

I didnt sign anything yet.Now they are threatening lawsuit.