Thank you. Okay without going into specifics about the proper suit, etc, I am simply going to answer what you asked - how to file a quiet title.
To sue in a state court, one needs to have a "cause of action." There are numerous causes of action, such as "breach of contract," "negligence," "fraud," "unjust enrichment," etc., as well as causes of action rooted in statutory law. Every state has their own although they are very similar to each other in every state because they all stem from the same common law. A pleading in Court needs at least one cause of action, although it is not unusual to have more than one. So in this case, someone in your situation is asking about a complaint with the quiet title action.
You can see a sample complaint HERE and HERE. Good outline of general concepts can be found HERE. You can follow step by step instructions HERE that tell you how to file the suit.
Please review and let me know if there is anything else I can answer for you.
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