Yes, I do. A second home (or first for that matter) is defined as having 3 things.
1)Sleeping quarters
2)Cooking facilities
3)Bathroom
As long as you have these three things it should be fine on the taxes.
The interest on second homes is only deductible if you are under a certain income level. Above that level the amount you can deduct is reduced and eventually goes away altogether. I'm not exactly sure what the level is as I don't have such problems as worrying about my income being too high. I wish I had such problems.