Hello! I am a licensed attorney, admitted to practice in state and federal court. I have a nearly 100% satisfaction rating so all that means is that you can count on me to help today. It seems like you have an action for trademark infringement. You may want to consider just writing a cease and desist letter. Lawyers use letters like these on the regular basis to enforce their client’s rights. There’s a site that I’ve used in the past where you can find a good template for a demand letter (click here). It only costs $10 and it is way cheaper than litigation. If you would like to file a lawsuit for something like this then you may just need to hire an attorney. However, Harrington attorney is not necessary. You can do this on your own. One of the things that you would have to do is find some 28 line pleading paper, draft up the facts of your complaint, state with the law is regarding trademark infringement, and then state with your prayer for Relief is. Once you do that, you would take it down to the court, have the court clerk file it, then serve that complaint on the other party. After that, most cases typically settle. This means that you may be able to work it out with the other party to have her give you back the name and take down the slanderous information.
You ay also have a case for defamation. Defamation is basically a false and defamatory statement, published to a third party, that causes harm (usually a lessened reputation in the community, lost business opportunity, or other harms as the facts dictate.)
Although I don't know the full extent of what was the supposed defamatory statement, run the alleged statements through that analysis to see if it fits.
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