If you have a little leftover cash after cutting spending, either put it away or use it to extinguish debt.

I ended up in Pigeon Forge for my STRs because I can use the cash flow from those to pay for my Breck trips and still have money left over. 

For most people having any kind of money left over is a good thing since you're essentially getting the place for free while rents go up and it appreciates in value.

I am all for risk taking but I am not in a hurry to go from 2 doors to 100 doors in 12 months so I would rather take my time and save up a good chunk of cash between deals since I like to have more than 25% to put down and have reserve left over for cap ex or other expenses. 

If commissions were 6%, which may be high, (many agents are charging 5% and 4%), then commissions were about $23,622  which is split with the other agent getting half and you get $11,800 and that is split with your broker so you get $5,900 - that is about $1,966 per month - subtract gas, advertising, and other expenses and you can treat your client to a cup of coffee and have $0.50 left over.

I am referring to the extra funds that I have left over.

@Brian Cardwell - and that $2k "left over" at the end of the moth you pay interest on?

When we sell the property, I get my investment back, plus 8% return for the year, and then 60-80% of the left over profit.

The grandson couldnt be happier and the uncles are relieved the place will not be forclosed on and their nephew will have a place and enough money left over to buy a used car.  

If more come my way great, then I'll look to wholesale whatever else is left over.