I would highly recommend writing a memorandum of contribution and detailing out the reasons preventing clean title transfer to the LLC. and confirming that it will be done upon resolution of those issues ad to actually follow through. 

Being stagnet suffocates you and prevents you from advancing your business.

Or the condenser could have been pulled and stored off site to prevent theft. 

Would the fact that I am personally an owner in FINAL DESTINATION (either majority or minority) owner prevent this sale as a prohibited transaction?

To prevent over leveraging. 

I don't have much money but I don't think it will prevent me from building on this land. 

I don't have much money but I don't think it will prevent me from building on this land. 

Knowing ways you prevent maintenance up front on the rehab is very valuable info.

There are steps you could take to prevent this, which generally involve lying and scheming, but the only true protection is to close and resell. 

Yep and that prevents those instant offer companies from entering for the time being. :)