They might be willing to pay a little over market rate since you have proof of rental income.  

He wants proof you have the ability to close before he spends any time on you.

Rents can be increased probably 100-125 per unit.This is acceptable to me.However, buyers refuse to show any proof of income and DD period is over tomorrow.

I'll keep it easy to read and summarize with bullet points, Here's how I did it:1.

The home was built in 1912 & I put in $250k into that one... new plumbing , electrical, foundation water proofing , new roof , etc...

@Michael ClayWorking with your attorney you will most likely need the following:1) Loan Agreement2) Promissory note (if lending to a LLC)3) Personal Guarantee (if you require one)4) Mortgage / Deed of Trust (depending on local laws)One important point is to ensure the property has a clear title (title company will do this, but ensure you have proof before wiring money).

one thing we had to deal with though in our area is rent control..its a great business and well position quality parks on city water and sewer are about as bullet proof of cash flow investment as one can make in my mind.. once the coachs are there they done move. especially if they are pit set..

Should I bother giving him leeway to come up with the cash so I can buy myself another 6 months to save or do I bite the bullet now and do a half *** job renovating in order to get someone else in there?

You can however, require documentation of proof that the animal is a trained service animal. 

Think about:  we have a clause in all leases that state after move in, tenant is responsible for ALL glass inside and outside the unit.