If you've always wanted to invest in real estate but don't know where to start, "house hacking" may be your first step.

Simply put, here's how to do it: buy a property with two, three or four units using similar favorable loan types that owner-occupants enjoy. Live in one unit and rent the rest. Learn the ropes for a while and stash any cash flow for repairs and reinvestment. Use the living expenses you save to move out and buy another property. Repeat.