Ways to provide security for Investors. Contract or Attorney?

[Ungwang Boiteto]

Hey BP folks!

What is the best way to provide security to investors on a privately funded project? Should I have a deal drafted by a lawyer that guarantees that funds will be paid to creditors once the sale of the property has been completed?

I'm asking from the perspective of someone who would like to have investors finance a flip. How do I assure them security and a return on investment when they don't know me from a bar of soap?