Age 65, of Upper St. Clair. Passed away on Sunday, May 9, 2021. Beloved son of the late William H. and Madelyn (Bricker) Sullivan. Loving brother of Cynthia Greer (David) and Daniel Sullivan (Mary Pat). Cherished uncle of Meghan Shirley (Matthew) and Katie Girgensons (Zemgus). Loving great-uncle of Hadlee Girgensons. Best friend of his beloved dog, Jake. Also survived by his roommates and caregivers at Southwinds, LLC. Mike brought so much joy into our lives and was a constant reminder of what truly is important in life, he absolutely loved being with his family and special friends. Private visitation and funeral Mass for family and friends on Tuesday, May 18, 2021 entrusted to WILLIAM SLATER II FUNERAL SERVICE, Scott Twp., (412-563-2800). www.slaterfuneral.com