Conversation so far:
who owns the lord of the rings franchise?
The Tolkien Estate is the legal body which manages the property of the English writer J. R. R. Tolkien, including the copyright for most of his works.
What is the net worth of the Tolkien Estate?
Forbes has the Tolkien estate values at $500 million dollars.

Question: who controls the estate?
Self-contained rewrite: Who controls the Tolkien Estate?