Send a legal notice and file a case

I need help sending a cease and desist legal notice, followed by the filing of a case in court if necessary. This is the first step in the process so there are no existing court orders in place. Ultimately, I am determined to file a case, but I am exploring all of my options. I need experienced assistance in this matter to ensure the process is managed correctly. If you are qualified to help guide me through this process, please submit your proposal. Thank you.