Open a lease. For more information on how to do so, see section 4.6. or 6.1.
Go to the lease card (see image below).
Click the tab called "Dates" (see image below). Within the tab called "Dates" you will, among other things, find a field called "Termination of landlord"
Set a notice time for the landlord set for the lease you are working with by going to the heading "Termination of landlord" and enter a notice time in the field "Notice time (months)" (see image below).