I have a letter of determination from the EEOC and finally a right to Sue after the company agreed to conciliate but went silent. Seek representation

I first filed with EEOC in 2014. I have emails sent to HR recording retaliation. EEOC issued a letter of determination that my rights had been violated under Title VII ADA. We started the conciliation process in december 2016. The company failed to respond. The EEOC issued a right to sue doc. May 17 2017. After 3 years I would like to move fast and have to do this on contingency.