Conversation so far:
when did joe frazier's financial issues begin?
Over the years, Joe Frazier lost a fortune through a combination of his own generosity and naïveté, his carousing, and failed business opportunities.
who was Joe Frazier overly generous to with his money?
what legal battles was Joe Frazier involved in?
After a Pennsylvania land deal, Joe Frazier sued his business partners, insisting his signature had been forged on documents and he had no knowledge of the sale.
who owed Joe Frazier money?
A developer who agreed to buy the land for $1.8 million owed Joe Frazier money.

Question: what did they owe him for?
Self-contained rewrite: what did the developer who bought land from Joe Frazier owe Frazier money for?