Some time ago, I was served a frivolous, extortionary lawsuit. The complaint included a number of false claims. I went to a lawyer, who told me that while I could fight this and probably win, my best option was just to pay them some money and move on with my life. I was furious, naturally, and insisted in multiple conversations with my lawyer that these guys were fraudsters, but my lawyer (who didn't seem to believe me) kept telling me "Nah, this is in good faith, just pay up and settle and move on." So I did. Some time later, I hear that these people who sued me are in trouble for, you guessed it, filing a bunch of baseless and frivolous lawsuits in order to extort things from people. So now this is out in the open. Meanwhile, I'm still out over $20,000, following my attorneys advice.
I would like to know if it is, in general, possible to throw out a settlement agreement in the situation that the plaintiff has since demonstrated a consistent pattern of abusing the court system. There's a non-disparagement part that I would like lifted, and then there's all the money I lost that I would like back.
More specifically, if I were to pursue this, what sort of lawyer should I talk to? I apparently picked the wrong lawyer last time, and I'm not interested in contacting the attorney who negotiated this horrible deal for me, ignoring a number of red flags.