Companion Care Needed - Full-time / Part-time

About who needs care: My husband has a heart problem we are trying to resolve. May need a pace maker, but in the meantime I work and he cannot be alone. I need someone to stay with him during the days I work, 9-5 M-F. About the care needs: They need to know he is a fall risk, and be able bodied enough to help him getting up and down and around the house. He has a walker, but is sometimes still unsteady. Services needed include: meal preparation, errands / shopping, and light housekeeping.