How To Write A Letter For Leaving An Apartment . If you aren’t sure how to construct your letter, you can follow the letter to a landlord template located below: Post leaving this rented premises, i will settle all the dues of the security deposit within seven days. FREE 5+ Apartment Lease Termination Letter Templates in MS Word PDF from www.sampletemplates.com Below is a template you can use when writing your notice to vacate letter. I am leaving because (new job, rent increase, etc.) if. I expect to receive that deposit refunded in full, since the.