[Your Name] [Your Address] [City, State, ZIP] [Date] [Opposing Party's Name] [Opposing Party's Address] [City, State, ZIP] Re: Plaintiff's Motion for Leave to File a Supplemental Memorandum Dear [Opposing Party's Name], I hope this letter finds you well. I am writing to inform you that as the plaintiff in the aforementioned case, I am seeking permission from the court to file a supplemental memorandum pertaining to [specific details or issues]. This letter serves as my formal request for leave to file this supplemental document. Salt Lake, Utah Salt Lake City, Utah SLC, Utah I believe that the additional information contained within the proposed memorandum is crucial to a complete and accurate presentation of the facts and legal arguments in this case. The new evidence and legal authorities address significant developments that have occurred since the original filing of the memorandum, and will substantially support my position. In accordance with [mention applicable procedural rules or court guidelines], I hereby request that the court grant me the necessary permission to file the supplemental memorandum. Attached to this letter, you will find the proposed supplemental memorandum, which outlines the updated facts, relevant case law, and any other pertinent information. I assure you that my intention in seeking leave to file this supplemental memorandum is solely to ensure a fair and comprehensive consideration of the issues at hand. I understand that your agreement is required for the court to grant my request. Therefore, I kindly request your prompt response to this matter. Should you have any objections or concerns pertaining to this motion, please do not hesitate to contact me at [your phone number] or [your email address]. I am open to discussing any potential resolutions or modifications that may address your concerns while still allowing the court to consider the supplemental memorandum. I appreciate your attention to this matter and your cooperation in resolving it promptly. Thank you for your time and consideration. Yours sincerely, [Your Name] [Your Title, if applicable] [Your Contact Information]