Forms must be presented and signed in person at 2800 S. MacGregor Way, Houston, TX 77021. For further information please contact 713-741-6014.Probate Courts 1-4 Address: 201 Caroline Houston, Texas 77002. The County Civil Courts Department serves as the clerks for the four statutory County Civil Courts at Law in Harris County. Field 1: Fill in the county in which the action is brought. Be consistent with other forms. You are not required to use TREC's Complaint Form. 4. Basics for Filing a Case in the Northern District of Texas. A. What are the Federal and Local Rules of Civil Procedure? The filing of a sworn complaint sets in motion a process that may include a preliminary review as well as informal or formal hearings.