In 2001, I resigned after 18 years of teaching English in a Miami high school.

My yearly evaluations for the last year, and the ones before that were satisfactory and specifically recommended that I be rehired. This was signed by the school principal.

Some months later, after moving to NYC and attempting to get a teaching job, I was shocked to learn that the Assistant Principal of the Miami school completely trashed me in a form, saying basically I was alousy teacher and should not be rehired.
This was directly contrary to the final evaluation signed by my principal.
As a result, I found it impossible to get another teaching job.
I want to know if I have a legal case to sue the Miami school and/or the school board, for bringing an abrupt end to my chances of getting a teaching job, which by the time I would have retired I would have earned something like 12 years of salary until retirement, which in my case would have been something like $500,000 (Gross).
I brought this situation to a local lawyer in the town where I live , but he seemed like he couldn't care less and said I was out of luck.
I don't feel this is true and wonder if another attornewy might see the merit of my case.
Thank you.

If I were in your position I would speak to at least one or two other attorneys.

This happened about 9 years ago? If you want to do something about it, you better find out what the statute of limitations is. If the SOL has passed, you would not have a case any more.

Is anything that was put in the form true or was it all made up.

If it is true, he can not be in any trouble for merely telling the truth,
If he is lying then you have a case.