In addition to your legally binding lease, it is important to create a homesharing agreement with your housemate.
A homesharing agreement supplements your lease by laying out the house rules and the finer points of sharing a home. Build it together with your housemate so it can support you both in a healthy homesharing arrangement. Watch this video for ideas of what to include in your homesharing agreement and how to make it official.
Video: How to Create a Homesharing Agreement That Works for You
To learn more about homesharing, see How It Works.