Do Searches for Legal Assistance Outside of Work Hours!
All of these things will likely get back to your employer because staff may feel they must tell a supervisor, manager, etc. what you are planning to do. Staff may think they can get a reward for disclosing your plans (e.g., a bonus, salary increase, promotion, etc.) Or, staff may just feel like spreading gossip (so and so is getting ready to sue the company).
Don't give your power away by providing fodder for office gossip or by telegraphing to your employer that you plan to file a complaint with EEOC, a lawyer, etc. Your search for a lawyer and guidance on employment issues should be done on your personal time and outside of the office. Many employers use software that records keystrokes and they can also see every web site employees visit.
Maintain a healthy dose of paranoia. When it comes to even the possibility of vindicating your employment rights, keep your plans private!