Good for you with regards to thinking of a really smart way to lower your monthly expenditures. However, When buying a house or condo you will need money to put towards down payment and closing costs. You didn't mention how much the two of you had saved to be used towards the down payment and closing costs. A sales price of $130k would require about $5k. If you don't have that saved, Perhaps you have relatives who
would gift it to you. There are also some 1st time home buyer programs that might help you. Your fiancé definitely needs to get his credit score to at least 620. A lender would be the best person for you to contact and have your debt to income ratios evaluated. One you've addressed those 3 areas, you would be on a better position to evaluate your readiness.