Yes, you can use OPM — "other people's money" — for real estate investing. : Abhi Golhar, nationally syndicated radio host & CIO of Summit & Crowne. Helping business owners advance & finish well. Yes, you can use OPM — "other people's money" — for real estate investing. Without any hype, you can find funding sources for real estate investment. The funding resource will usually depend on the type of investing you're doing. To start off on the right foot, if you don't have a few hundred dollars for an earnest money deposit, get that first and then use these resources.