What to offer on a cash loan from family?

[James W.]

I'm not sure if this qualifies as a "HML" or something else, but here's my situation.

I have several properties that I'm interested in, I'd like to buy them all but I'm running short on cash.

All of the properties cash flow nicely. I'd be looking at borrowing between 50-100k from some friends and family. I do all of the property management, so all they need to know is what they are getting in return for their money.

Is 10% reasonable? As in, they give me 50k and in 1 year I return 55k? Or should it be lower or higher? 

Also, how do I do this so they have collateral, but I don't have to refinance to take them off my title once I repay the loan?

Help me out here BP! Thanks :)