Complex sentence: Despite the success of his methods, he does not often receive many assignments and therefore cannot pay rent or repair his battered 1970s Chevrolet Monte Carlo; whereas his eccentricities make him the of the Miami-Dade Police Department.
Split into simpler sentences: Despite the success of his methods, he doesn't receive many assignments and therefore cannot pay rent or repair his battered 1970s Chevrolet Monte Carlo. His eccentricities make him the of the Miami-Dade Police Department.