We leased out a shop to a business that ultimately didn't work out and have time remaining on their initial contract period. Contractually, we have full claim to the remaining amount on the lease (formally prepared contract).
What would you do, if you have obligations of your own you had to pay using said lease money? Discount? Let them out early? Sic the lawyers on them?
Talk to them first and see what they are proposing to do about the lease.