With rising rents and higher home prices, many millennials feel stuck between renting forever and stretching too far to buy a home. But there’s a powerful strategy that more young buyers are using to build wealth and reduce living expenses: house hacking . House hacking allows you to buy a multi-unit property, live in one unit, and rent out the others — often covering most or even all of your monthly mortgage payment. Here’s how it works and why it can be especially effectiv