How To Write A Letter Of Terminasncy Of Apartment . Due to my recent promotion, i have been transferred to a different state. Our lease will expire on january 31, 2020 and we. 30 Best Early Lease Termination Letters TemplateArchive from templatearchive.com The letter must be written well in advance of the leaving date; However, for one reason or another, it might be necessary to terminate the agreement earlier than stipulated in the contract. The individual in question can be a homeowner who is interested in selling their property, or it can be a property investor.