Now, however, we no longer need that much space.

The future owner would like to do the work themselves or with an unlicensed (and very affordable) contractor, but to get a permit they need a licensed contractor.  

A degreasing agent needs to be applied, a little scrubbing, and you're done.

I need to get the collective computing power of BP together and make a ruling here: A tenant has moved in and is under a year contract.

So the lender will fund the rehab but you need to give the GC or Subs a deposit out of pocket so they can get going. 

(Both that you know about now and that you are told about form your buyer’s inspections.)Most buyers are going to discount their offer by double what they think it will cost to repair what they can see plus the “mystery repairs” you’re hiding with your as-is sale so you will make much less on the sale. 

You'd need to show enough funds to close (down payment + HOI + Title + Fees) and usually 3-6 months reserves. 

Either way, we'd need to see strong financials and a strong sponsor with a very solid deal to get anywhere close to what you are looking for.Cheers!

or do I need to empty it?

I need some guidance.