I hope the Dean heps you out with that class stuff.
Have you guys ever thought about just finding a nice little place to rent? Sorry if this has been covered. It would get you out of the in laws place sooner than later. If the house your looking at are out of your price range maybe it would be worth it to keep saving for a while longer. I hate to see you rush into something that does not make you happy just because you want out of the place your in now.