This could now be used again to buy multiple properties all of which have the opportunity of forced appreciation through rehabbing and increasing the rents.

This may be a silly question, but if it's a cost thing in the short term...could you build multiple pads < 5000 sq ft and avoid the engineering costs/permits?  

The contract has been extended multiple times, with the final date being 2/21.

There are multiple homes listed from anywhere between 34,000 to 54,000 (3br and 1to2 bath).

Show them you are in good standing.If the rental is in high demand (you have multiple prospects) remind them that they don't have the apartment until a deposit and lease are signed and that other tenants are interested.

I'm currently developing new construction in multiple areas around the city. 

My HVAC tech have given me some good deals in Charlotte by buying multiple systems and being flexible w installation date

They have more skin in the game then you do.Make sure you get clear title.

I have multiple tenants that pay Bi-monthly(it's written into the lease) and I have to send the occasional Pay or Quit notice, but as of right now, I collect 100% rent owed to me, and I haven't had to turnover a property due to lack of payment since one of my first inherited tenants failed to pay.There will always be bad tenants, and there will always be fantastic tenants, but most of us will find, OK tenants, and it's my belief that it's your duty as a property owner to try and work with OK tenants.

You need multiple things to go right since you need to find a good deal that has flip potential AND rent potential.