Good questions, thanks! If it came down to it, we could rent for a little before buying a second home. However, we are saving about $4500/m after living expenses currently which would take us north of $100k in two years. (not factoring in raises and other income). As for DTI, I hadn't considered that, but the first home, our DTI would be <10%, and even if we added a more expensive second home, our DTI would be under 30%.