Yes, it is legally possible to file a lawsuit against any federal agency.
OSHA
NO, THEY DO NOT.
OSHA
The W 4 comes from your employer so you can file income taxes.
If your not a State or Federal Agency, then you would need to file a lawsuit, win a judgment, and file a Motion for Garnishment with the courts, and typically you must know the information of what you are seeking to garnish.
File a report with the local police agency and report it to your insurance company.
Yes an agency can, you will still have the policy and it will be assigned to another agent or the company itself for future service.
File a consumer dispute with the credit reporting agency. You can do that online as each reporting agency has it's own website.
Which agency of the County are you dissatisfied with? File your complaint with the head of that particular branch or agency.
Can a collection agency file charges for a bad check
In federal civil court due to diversity of citizenship.