You should go to the District Civil Division of the District Court in the county where the person or business you wish to sue lives, or has an office, and file a Statement of Claim (Complaint) form. This form is available in the Clerk's Office. By law, the Court Clerk can not give you legal advice nor can they assist you in filling out forms (you, an individual or an attorney of your choice may do this). If you are physically unable to fill them out yourself, this office will gladly make reasonable accommodations in order to help you complete the necessary paperwork.
Once you complete the complaint, you become the "plaintiff" in the case and the person you are suing is the "defendant". The information that you must have in order to complete the case is the defendant's correct and complete address and/or their place of employment. You must pay a filing fee at the time the claim is filed. Filing fees are non-refundable. NO PERSONAL CHECKS. If you cannot afford to prepay this fee, you can fill out an Affidavit of Substantial Hardship form and ask the judge to delay payment and the costs will be taxed at the conclusion of the case. You may attain this form from the Court Clerk or download from the site at Affidavit of Substantial Hardship. Otherwise, you (the plaintiff) will be responsible for any costs accumulated over the course of the claim.
CERTIFIED MAIL - When requesting service, wherein the address provided is a post office box, or is out of state, the papers may be served by certified mail. You should prepare an envelope, green card, and green and white sticker. Be sure that the Clerk's address is the return address, to-wit: Montgomery Circuit Clerk's Office, District Court, P.O. Box 1667, Montgomery, AL 36102. You must affix the proper postage onto the prepared envelope. It is your responsibility to insure the address is current and correct. You will need to contact the US Post Office to obtain current fees for certified/return receipt mail — Restricted Delivery.