Should I get a lawyer if I'm applying for a TN visa?

Hi,

I'm currently working as a graphic designer with a OPT work permit, which ends in June. I'm of Mexican origin, and I would like to apply for a TN (NAFTA Professional Worker) to continue working in the U.S..

I had a friend that got that permit, and he did all the application process throughout a lawyer.

In my case, I already know about the required documents and application process and I was wondering if getting a lawyer would make a difference. It's just that I would like to avoid paying lawyer fees if I can do the paperwork myself.

Here's more info about the permitL
http://travel.state.gov/visa/t...s/types_1274.html#19

Thanks in advance!

TN status is available to citizens of Canada and Mexico who will work in the U.S. in a designated professional capacity for a temporary period. In order to qualify for this status, individuals must be coming to the U.S. in order to work in an occupation that appears on a list of professions designated under the North American Free Trade Agreement (NAFTA). With minor exceptions, these positions require the TN employee to hold at least a Bachelor’s degree.