Good afternoon. I'm interested in the unit you have for lease.
Hi, I have a large unit approx. 1800 sq ft. and am asking $2250/mo. with an approved credit check and signing a 1 year lease.  If all checks out I will take 1 month off move in.   
My budget is $1125, but I'm willing to compromise on the price if you can throw any perks in.
If you can maintain the property outside I might be willing to accept $1650
That's an acceptable price. I'll send you an official offer for $1650.
Great!  You have yourself a deal!!