I own a condo with a mortgage and tax deductions and equity. SO moving in. How do we split expenses fairly? Many other questions about financial logistics. I've owned a condo for several years and have built up extensive equity between putting in more money and the ridiculous local real estate market. SO is likely moving in soon, and my life will be much the better for it. Happy Valentine's Day! It doesn't make sense for both of us to move and get a new place: I have more money than SO does so we just end up with a new problem, we both like the place, SO needs to move anyway because of expiring lease, and the location is great. Also, I just refinanced at a much lower mortgage rate than I could get now, so any move would put us in a downgrade even if I could psychologically accept the loss of sunk costs.