Hey--I bought a house in Baltimore last year. Not sure if you're looking to buy in this area, but if you are, you should check out http://www.livebaltimore.com/.
This site lists all of the incentives Baltimore city has for homebuyers. I got one of 40 mortgages they were offering at 4% last year, and my employer was also part of the Live Near Your Work program, so I got $3,000 for closing costs.
I'm not a nurse yet, and I don't work for a hospital, but you may want to contact the hospitals you're applying to and asking about any programs they have.
Good luck, and welcome to Maryland!