It seems you are being ‘shorted.’ You need someone to stand up for your rights.

Should I settle my workmen comp case for 7,500 that's included lawyers fees, and gas fees to and from Lumberton NC to Raleig NC?

You should consult an experienced NC workers compensation Attorney.

Injury at work ?

You need an attorney ( seems that you have been trusting, too trusting). You need an evaluation from a specialist, an honest one, preferably not...

When can I legally quit my job with pending WC mediation ?

Do not quit your job. Also, if the employer/ carrier is picking the 2nd opinion, do not expect to be treated fairly. If you have permanent...