As much as we like to think everything is going to go right, doesn't mean it will, so we always make sure to look at the potential downside as well and see when it is that income after expenses and mortgage would breakeven or make no money (what percentage of forecasted income).

Further, what percentage would you deem appropriate if you're familiar with this exchange? 

I understand the purpose of the GC position isn't manual labor, but that still feels steep for simple supervision, especially considering the budget is tight. if this was a school/hotel/restaurant/etc I could understand. do GCs normally charge both a weekly rate and a flat percentage on the end for single-family jobs?

If you make over that threshold it will be a higher percentage.

Is there a way that I can purchase a rental property with all cash and pay back the cash with a percentage on return by me using a mortgage to pay the lender?

My regular cancellation policy is to return a percentage of the booking, but I've decided to return all of her funds. 

Sam Shin,in order to waive the funding fee its not so much the percentage disabled but whether you have a disability that qualifies for monthly compensation. 

Of those agents what percentages do full time work, vs work part-time vs work sometimes?

Don't be afraid to ask personal questions - this is more than a rental application-Will a percentage of their rent go toward "principal" every month?

You could also do a lot of the work for them for a percentage of the profits.