When I had no track record and little experience, the only "private investors" I could find were family, and the only reason they invested with me at the time was I had a successful track record in businesses other than real estate.Once you have demonstrated the ability to make profits and give people / banks back more money than they gave you in a short amount of time it's pretty easy to bring new investors into the mix.

That's just life, but  with no emergency fund at their disposal their ability to pay rent on time always seems to suffer. 

A cash buyer has the ability to use their own funds to close, they have cash to close.

I prefer to rely on my ability to screen for good tenants than on the government's ability to continue to pay me.  

-If the interest rate is fixed, what is the max interest rate, assuming the buyer has the ability to pay?

Not an easy task as over the years, I have developed an ability to borrow private funds or do JV deals so I had never taken out a hard money loan and with all the lenders in this field, options are almost unlimited for a person at my level.As to the wholesaler, for once, I found a deal that hit my desk where true value was added.

Their ability to execute and work cohesively are paramount maybe even over the technology itself?  

Otherwise, you might end up in an argument over who pays a bill for work already completed.Here are two examples from my previous flips:1. 

He is not motivated to sell, but it seems he could be persuaded to go with seller financing...so, do I explain:I will take possession of the property by transferring the title into my name.You will retain ultimate ownership of the property and have the ability to foreclose should there be any non-payment issues.I will pay you a monthly loan payment of X Dollars every month for the next X Years.And if this is correct so far, how do I explain the terms?

The ability to lock in some gain on a permanent tax-free strategy is huge.