It is easy and goes like this: Buy a duplexMove into on of the unitsRent out the other unitLive totally free since your tenants pay your mortgageThere is far more to discover collaborations and investing in multi-family residential or commercial properties however this may just whet your cravings for more information about it.There are numerous things to learn from single-family houses before you should attempt to move into multi-family apartment or condos. Start with single family homes first and advance in homes as your skills development. As you can see there are various methods to fund properties and this list is simply a few of them.