I would definitely not transfer to Northeastern (rep isn't significantly better than Suffolk), but I might consider BU or BC. Still, you have to consider the economics. You'll probably graduate from Suffolk w/little or no debt, but from BU or BC you'd end up not working AND paying higher tuition. And it would be two more years in either scenario.
Overall, I would lean against it. The big Boston firms do hire a few people from Suffolk traditionally (I summered w/a few in Boston in 2008, and they were very cool people), and are much more likely to do it for someone like you w/a PhD, work experience, going into IP, and good reason for going to Suffolk (the only school w/an evening program).
The only think working against you is the current economy; it's possible that schools may trim their hiring from lower-ranked schools. But I still don't know that the extra prestige would be worth the cost, particularly considering that you won't be coming out for another two years.