If an employer SOLICITS a former employee to RETURN to the employer and offers the employee to bill thru a 'shell' co.?

It depends upon the context you are asking about. I'm not sure we know enough to properly answer yet.

When hired by a new company taking over for my old employer they decided to keep me in a regional director position ?

It is possible that you have a viable age discrimination claim. I recommend scheduling several free consultations with experienced employment...

Are these IME's in the course of an employment litigation or in the course of a workers' compensation matter?

Paystub on H1 transfer?

It appears the site may have mis-classified your question as one of employment law. You may receive more answers if you re-post under the...

My employer overpaid me for 6 months? Want me to sign paper to get money back. Do i have to sign it

Your employer has the right to collect a mistaken over-payment. If you refuse, they may simply take you to Court.

Litigation co-counsel needed / employment, discrimination and other claims.

How long ago was the termination? Was it within the last three years?

Contact HR in writing to inquire about picking up your paycheck.

Do i have a hostile work environment suit?

Was the teacher who was lied about given a 3020a Tenure Hearing?

What is the legal name of a letter sent to an employer requesting that discriminatory treatment be ceased? Different than C&D?

Some firms utilize a letter of intent to sue which lays out the potential acts of discrimination and the desired reforms.

Illegal or not?

You may have viable claims, I recommend scheduling a free consultation with an experienced employment attorney.