Am I required to deposit a certain number of weeks per year to THIRDHOME?

No. However, in order to be able to book outbound exchanges, Hyatt Vacation Club Owners are required to add a minimum of 1 week into THIRDHOME every other year. If you have not deposited a week into THIRDHOME for over 24 months, a new week must be deposited before making a reservation. Of course, the more weeks you deposit, the more Keys you’ll earn.