I bought a duplex with my sister in San Francisco. We share resources, split the mortgage, and babysit for each other.

The author, right, and her sister bought a duplex together in San Francisco.

Courtesy of Nicole Findlay

• My younger sister and I loved living together and decided to buy a duplex together.
• Both of our families benefit from living so close and sharing the mortgage.
• I also love that our kids are getting to grow up together.

After college and stints abroad, my younger sister and I rented a two-bedroom apartment in San Francisco. Our living situation was glorious.