I'm an only child. Buying a house with my mom felt like the smartest way to prepare for both our futures.

Owning a house with my mom hasn't been easy, but it's been a great way to prepare for the future. Kate Donati Last year, my mom and I bought a house together, despite not being the most natural of roommates. I never imagined owning a home at 28, but splitting the bills has made it cheaper than I…