A simliar question was asked about frauding over a signature. My question is what if they copy and pasted your signature to a contract.of course the person has proof that this signature was done fraudlent.would it be a criminal case or other.I wanted to go civil lawsuit.but I also have fraud in there also.since someone .copy and pasted my signature to a contract of obligation of paying a bill.
Before you file a lawsuit, check whether the legislature in your jurisdiction requires any exhaustion of administrative remedies. If so, proceed accordingly, prior to filing a complaint in court. The legislation would also specify whether a complaint against the city shall be filed in a specific court or venue. Most likely you would have to sue the city.
Although unlikely, if you have identified specific individuals as responsible for the forgery, you might want to list them as defendants as well. Based on the context, you will need to identify whether you are suing these individuals in their official or personal capacity.
If you decide to proceed in court, be mindful that you will be required to establish through evidence that your signature was forged. Although you state that
of course the person has proof that this signature was done fraudlent
(which I assume that by "the person" you mean yourself) your case seemingly requires a rather complex analysis of factual circumstances. Since you have provided almost no context and no details on how this happened, it is impossible to make any suggestions on how to accomplish that.
Regardless of whether you opt to pursue the matter in civil court, you might also want to report with the police that your signature has been forged. Also there it is crucial that you provide sufficient, relevant information, lest the police dismiss the matter as too vague or too unpersuasive to conduct an investigation.