Will there be a hangar maximum a player can own or rent?
No. Right now hangars are given when you buy a ship, but in the universe you could buy some storage with X amount of space for this price. Right now they're getting deeper into that storage component where when you buy an item from Casaba Outlet, for example, and having the inventory, transaction, delivery take place on the backend and have it affect the virtual server. Post 3.0 you'll see variable prices, supply and demand and etc.
starfarer.space · Star Citizen: November Subscriber's Town Hall