Questions about loaning money

[Cheryl Hixenbaugh]

I have been approached to loan money for a fix and flip that they need money to finish so as to beat the winter months.

I have some questions about loaning the money. I have flipped myself but have always used my own money. Here are my questions, any any help would be appreciated:

They want to offer an "annual Interest rate" on the money. Anyone know how to calculate what I would be making and what a fair interest rate would be?

What kind of contract do you use? Do you quick claim deed to the house to verify your investment is secure by the property?

Any other advice?

Thanks Cheryl