Is it hard to become a TA I mean is there many classes you have to attend because I would like to look into it for part time.

There are many schools available. The one I went to was in Dallas. It was a 12 week course, and cost me $3600. I'm sure there are other options, maybe even on-line classes. We had to go to a classroom 5 nights a week and on Saturdays. I should have stuck with it, but when you graduate you can only find positions that will have you organizing documentation that pay about $800/month. After you do an internship between 6-12 months, they will let you have a few clients.

Beware of "Cardmills, or MLM's (Multi Level Marketing) schemes that sell you a travel business under the pretense of "big discounts","travel like an agent", "travel free", or earn "big money".

Thanks for that tip I have been approached.