Stripe would almost certainly prefer to outsource this for places where they have a small handful of employees, and dealing with one company has a big opportunity cost buried in it that they almost certainly would be willing to pay.
If that was true then they would be, but they aren't. Companies that big can easily afford one or many full-time employees focused on office and resource management which is more than enough to figure out a few leases.
Remember this is a company that already has a major international business in one of the most regulation industries. Adding in a few real-estate deals is unlikely to be a major source of friction.
