Complex sentence: Montgomery Blair Sibley is an American lawyer, whose license was suspended in 2008, is best known for defending Deborah Palfrey, the "DC Madam", in 2007-2008.
Split into simpler sentences: Montgomery Blair Sibley is an American lawyer whose license was suspended in 2008. He is known for defending Deborah Palfrey, the "DC Madam", in 2007-2008.