Hey, we're going through this right now. Fortunately, we're not 1st-timers, so it's a little less scary. We're dual-income with great credit scores, so that also helps. We did an 80/20 the first time we bought, and it was nice. This time, loans are even more creative so we're actually getting a 100% financing with no PMI (wow!-- no, not a veteran or anything!). The good thing about this is we're probably going to get a slight fixer-upper and will be able to take out a HEL for improvements depending on the appraisal value (we get it cheaper than appraisal, we pay down on it for a while, it goes up in value over time). We got offered two things-- 80/20 at 6.5%/7.5% or this 100% at 7.1%-- so there are a lot of good deals out there. I recommend finding an actual mortgage company b/c they seem to have more options than the banks that do mortgages.
Things to consider:
1. Yes, they check your credit, bank statements, and *proof of income* for the approval process, but they also re-check both before settlement. So, you need to be in the same situation when you settle on a house. Keep in mind that approval-to-settlement times can be as much as 60 days (sometimes more), so they all do this to make sure their investment is safe with you (a lot can change in 2 months)!
2. If your credit is good and you can work out a deal with no PMI, you still need money to cover property taxes, homeowner's insurance, and miscellaneous home ownership expenses (stuff breaks). Just because you think you can afford $1000/month mortgage payments or rent payments does not mean the two are equal (mortgage+taxes+insurance, etc, vs just rent).
3. Leave room in the budget for utilities+. If you've been living in an apt, expect them to go up from what you're used to. Many locations require you not only to handle phone/electric/cable, but also water/sewer/trash and sometimes HOA fees if you live in a condo or townhome.
4. If you have the luxury of going to school near where you live, you should get on it ASAP. Otherwise, asking for a mortgage to relocate 100 miles away doesn't make sense unless you can show proof of an income in the new town-- like a job transfer. So, if you're going to move far for school, you probably won't be able to get a mortgage until you settle in there and your wife is working. Banks WILL loan to med students... they like physicians because of the low default rate.
Any questions about the process, just PM me.
Good luck,
FD