Davidson Realty hired Rema Shaban as its newest real estate agent. ■■■ MatrixOneSource hired Shannon Harper as business development manager. ■■■ Arbor Terrace Ponte Vedra hired John Schaum as executive director and Kay Tober as senior care counselor. Schaum will manage daily operations and oversee approaches to care, dining and daily engagement. Tober will work with families and caregivers to provide services, education and information.