You can configure product settings for the VertiGIS FM Rental Management module in the Rental Management section on the Administration > Settings > Product Settings page.

Rental Management Product Settings
Some notable VertiGIS FM Contracts configurations are Prooutlined below.
Tenancy agreements, notices periods < x months on product home page
This value for this setting determines how many months before the termination of a rental contract that the contract appears in the Deadlines section on the legacy version of the rental management dashboard.