Complex sentence: Beber's agency did work for the Helmsley Hotel group, and was hired--and fired--by hotelier Leona Helmsley four times, and had to file suit on three occasions to get paid.
Split into simpler sentences: Beber's agency did work for the Helmsley Hotel group, and was hired--and fired--by hotelier Leona Helmsley four times. Beber had to file suit on three occasions to get paid.