What are top 3 pitfalls to avoid when using OPM?

[Chris Braudis Jr]

What are top 3 pitfalls to avoid when using OPM to fund a deal? 

What should I consider as method of repaying the investor whether I should provide equity stake versus % return on money invested? 

[Theo Hicks]

I think the biggest pitfall is lack of transparency. 

To avoid this pitfall, send monthly recap emails to investors for each property. If a problem arises, identify the right solution as quickly as possible, and communicate the issue and the solution to your investors in the recap email.