I just went through this exact scenario with my LLB. Because I was the only person on the deed, it goes under me - 100% of the mortgage and 100% of the value. However, even though I owned the home prior to marriage, the value of my home IS NOT included in the "assets/liabilities prior to marriage" section of the form 13.1. In the end, it is a 50/50 split of the equity, but when I had only put 50% of the value on my form, my LLB corrected it and the reason was that I was solely on the deed.