Hi! You like the looks of the house?
I do, although I am on a fixed income.
I'm willing to negotiate, so long as it's reasonable. 
Well, I'm afraid since I'm disabled I can only offer you $1020 a month. On the other hand since I get a disability check each month I can guarantee that's direct deposited each and every month. Dependable rent.
Pulling my heart strings. . . I can certainly help some. I can waive the 30% rental fee and could give you the discounted rate of $1500, but at 1020, we would be taking a loss. 
Since I'm on fixed income I lack any way to pay more.  I understand if you need to get more.