Listen, I went to med school as an older student, 30, divorced with two kids. They do not use your parents income as a factor unless you list them as a source of monies on your FAFSA/SAR or your parents still claim you on your taxes. However, if you are married, your parents cannot claim you as a tax rightoff so that is out the window. You guys are making this way harder than it needs to be.
The trick is to go to medical school with a great credit rating. You cannot get medical school loans without good credit. You cannot have anything in collections. Try to minimize your credit card debt and personal debt before going to school since the student loans only stretch so far. So I took out the maximum loans which covered tuition, housing and left me with about $8000 per semester left over living money. I paid all of my rent in a six month block so I had two payments a year. Now I had a spouse that worked so I was able to stretch that and survivie. But if you have tons of bills, car payment, insurance, health insurance, undergrad loans you pay, credit cards, personal loans, etc. dont' forget utilites on top of that, so that money goes very quickly.
Usually those students who used their parents income are under 25 and unmarried. The rest of us are on our own. This is my personal experience with the financial aid process in med school. There are a few scholarhips and grants but don't count on those to beef up your overall cash flow.