I also have played with the idea of getting a turnkey 4-plex to start to avoid these expenses.

It'd be a different ball game if you put a down payment of 5% and rents went down by $300. 

If there is a value add play then it can be possible but another option may be upping your purchase price a bit and asking for a larger seller credit to offset cash needed to close. 

Let me run a scenario by you... and here I'm just playing devil's advocate I'm sure you're already frustrated with this individual and sounds like you've already made up your mind.Scenario #1 tenant breaks shower door:Tenant doesn't disclose to you that they broke it and moves out only to leave you with a large amount of water damage AND a broken door.

Eventually most people run out of their own money for pure cash flow plays.

Wholesalers and agents really dont play well together 

Should I play nice and allow her the extra time?

If you had $100,000 in principal left on the note, you should expect to receive a credit line of up to $300,0004) I wouldn't play this card with the big banks.

There are lenders that will do 90% of Purchase price and 100% of your rehab funds if you have a value add play. 

Trust me, I know it's very possible and I know that's the main battle in this game.