Law school (and the profession of law in general) is full of d-bags. If you aren't a d-bag now you will probably become one if you don't stay true to yourself. It's the whole "social engineer" v. "parasite on society" theory.
Double major will provide little benefit (if any at all). Your list seems possible (probably no at GMU though). Howard will probably give you money. I would go to Howard over any of the others on your list.