Yay! I have job offer, do I qualify for a TN Visa?

Ok so you go through a bunch of interviews and you get an offer – now what?  Does it mean you qualify for a TN Visa?

These are the 2 most common situations:

1)  The employer will have their attorney (in-house or 3rd party) produce a TN letter and walk through the process of application & wish the applicant good luck.

2) Applicant take the offer letter and ensure that the job falls in the in NAFTA profession list and that she qualifies (have license/degree and or experience).  She then creates a TN letter and assembles the rest of application package (offer letter, original license/degree, transcript, resume/CV, etc.)