Do you have a vehicle that can tow a trailer? Or will you have to budget in that as well? If you do, what is it and what are the payload and tow weights?
If not, you might look at a used class C in the 24ft range. Daughter can sleep in the cabover and husband can sleep in the dedicated queen bed. Look at the class C forum for the sticky post on buying an ex-rental - you might find it works best for your budget.
Also, as you will be using it during the winter months, you'll need to take that into consideration. Are there year round RV parks near her school that will offer electric hookups? If not, you will need to consider buying a 4-season RV which will cost more.
What is your budget? If not that much, you might be better off looking for a small apartment, etc., to rent.
