Complex sentence: In that year, she sued Simon Properties for $6M for failing to pay her a commission on the $800 million sale of the General Motors Building to Donald Trump, and settled out of court for an undisclosed sum.
Split into simpler sentences: In that year, she sued Simon Properties for failing to pay her a commission on the $800 million sale of the General Motors Building to Donald Trump. She wanted $6,000,000 and settled out of court for an undisclosed sum.