The initial quote I received was $1,700 to:Pump and dispose of 80 gallons of oilCut open the top of the tankFill the tank with sandCap it with concreteFor an additional $300, they offered full tank removal—which I chose to do for a total of $2,000.

The property is now listed for $185K and requires no additional work, making it ideal for passive investors or those looking to switch back to STR.

Renovating this additional 900 SF unit would obviously massively increase the property value as well but what other creative ways could I utilize this space for cashflow besides renting it out as just vehicle storage?

You can add additional documents as Exhibits at the end of the lease if need be, but everything should be listed in the lease and all parties will need to sign that document.

if you were to sign him for an increased rate for the additional two months, a new lease would likely have to be drawn up and signed. 

You do not want to lose OPM & you may need to guarantee them safety with additional provisions in your lending documents.2.

Due diligence is much needed, helping the buyer understand that they may have to pay you additional money since the wholesaler may not is important.

Not only do they not repay funds, they claim we owe them additional funding for renovations that never actually happen. 

happy to help further / answer additional questions. 

An SBA 504 (10% down, generally Prime -2% and 25 year term) can be used for the real estate portion.I don't know if that's what you're looking for, but it's at least an option.PS - look for an SBA lender that's in their Preferred Lending Program (a PLP lender), which shaves ~60 days of the time to close and one that sells their paper on the secondary market, just like a mortgage.Those who keep the loan in-house often add overlays, which are additional requirements over and above SBA's