I would include it either as a lump sum at closing for the amount which is easier than charging it back to them on a monthly basis.We have "investors" who own a % of each mortgage.

Examples could include but are not limited to installing new/ improving driveways, clearing overgrown trails/ build sites, demolishing abandoned buildings, property cleanup, extending or having utilities pre-approved, etc.

That's not including the equity/money put in getting to build permit. 

Any specific contract clauses or safeguards I should include?

Additional highlights include RV parking and a wealth of upgrades throughout the home, making it move-in ready.

As I posted recently on BP, some of the units that I've owned included heat and hot water in the condo fee, which increased the condo fee such their fee was in the $380 monthly range. 

A few other comments;For Philly: It's best practice to include the required documents in the final lease packet and have the tenant sign or initial all to prove receipt.

Hopefully it’s not combined with the landlord hatred.)It sounds more like an attempt to either admit they made a mistake or have to do any work to fix their problem.  

There is an offer to buy but if I include everything I've spent over the years, mortgage P&I, taxes, insurance, HOA, and recent repairs, I will just break even.

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