Renowned advertising art director and beloved husband of Myrna (Mickey) Florman, passed away at home in Manhattan on Monday, March 4, 2024 surrounded by his loving family. The son of Abraham and Sadie Sirowitz, Len was born in Brooklyn in 1932, grew up in The Bronx, and met the love of his life, Mickey, at the High School of Music & Art in 1950. After graduating from Pratt Institute, Len had an illustrious career at Doyle Dane Bernbach at the height of the creative revolution, and led his own agency, Rosenfeld, Sirowitz, Humphrey & Strauss for nearly three decades. A giant in the field, Len was known for his groundbreaking ad campaigns for consumer products and political causes. In retirement, he pursued his passion for drawing at the Art Students League. Predeceased by his sister, Sheila, he is survived by Mickey, his adored and adoring wife of 69 years; his loving daughter, Laura (Misha), his loving son, Michael; and cherished grandson, Yasha. He will be remembered for his award-winning creativity and impact on the advertising world, his tremendous heart, and his lust for life. Contributions in his honor may be made to Alumni & Friends of Fiorello H. LaGuardia High School of Music & Art and Performing Arts, or The Art Students League.
