This is a good alternative for Mrs Rogers because her only problem is the PMI. She is capable of providing for future payments after the construction of their new home, hopefully when she can nix off
her financial stress. Another consideration is that PMI is not tax deductible compared to mortgage payments. Should you decide to advance on the other mortgage, your monthly bill will be dramatically reduced. Those are the options to weigh when making a deal with your lender. If it's lesser risk with regard to financial capability, then you may avail a little help from your mortgage.