Complex sentence: He started his own firm in Miami with a $5,000 advance on his credit card in December 1985 but his license was suspended by the Florida authorities in December 1990 for various "violations".
Split into simpler sentences: He started his own firm in Miami with a $5,000 advance on his credit card in December 1985. His license was suspended by the Florida authorities in December 1990 for various "violations".