Peter, I don't know your living situation, single?, married?, family?.
option 1
mortage 3508 month
front house potential income 2950 month
difference $558 month expense to live in 1 bedroom ,
currently paying 1858 month
less potential 558 month
savings of 1300 month, x 12 months = 15,600 annual savings toward the next investment.
this is a payout of 558 x 12 = $6690 year
Option 2
rent front house 2950 rental income
rent back house 1650. rental income
total rental income 4600, month
less mortage 3508.
positive cash flow 1092.00 month. x 12 months = 13,104 positive cash flow income.
option 1
now take that 1092.00 month toward another purchase in that less expensive market and live rent free....
option 2
or use to drop rent at preexisting house
2020.-1092.= 928 rent and two others are paying off your home .
that is the options I see in 15 minutes of planning. There are probably a hundred other options out there,
by the way "Nice deal" .