Here is my IANAL understanding. If multiple people own a property all it takes is one person who wants to sell and they can force a partition sale. So my guess

Here is my IANAL understanding. If multiple people own a property all it takes is one person who wants to sell and they can force a partition sale. So my guess is Zuckerberg is using the quiet title suit to get the names of all the players. He then just needs to get enough of the fractional owners of each property on board and he can then pay the legal fees to help them with their partition actions and then purchase the properties and clear his title.