Yeah, it could be any number of things, but when you lease, you really only are selling the lease to someone plus whatever assets you want to include, if you’re selling the business. Buying businesses can be risky if the lease agreement isn’t iron tight.
Because when that lease is up, the owner of the property can just tell you to go away. They have no obligation to keep leasing to you.
2 examples I can think of are the Fairfield Fish and Chips shop and the former independent grocer in Brentwood Bay that is now Fairway.