Picture the street you want to live on, the commute that won't drain your soul, and the rooms that finally have a purpose. Buying a starter home around $340,000 is about finding that balance between a space you can grow into and a monthly payment you can actually live with.
Getting in with 3% down means you need $10,200 for the deposit, plus extra for closing costs. You will also need to account for property taxes and homeowners insurance, which add a chunk to your monthly mortgage bill. Check local rental rates if you plan to lease out a room, but don't count on that income until you have a signed contract.
Remember that the 18-month intro window is a deadline, not free money. If you have a remaining balance on the card once that time is up, you will be charged interest on whatever is left over.