The mail merge facility allows you to see mail merge letters which have been previously generated for a tenant or owner.

However for tenants, the letters for closed tenants are hidden, otherwise the list would become very long and hard to search.  But sometimes someone wants to find these previous letters.  So coming in version 9.1, the list of tenant names will also include the name <Closed Tenants> at the end.  Selecting that name in the tenant list will load the list of all open and closed tenants so you can see the letters for these people.  When you close and open the program again the list will default to showing open tenants only, however you can expand it again to show closed tenants if needed.