— By Sarah Hollander Soon after Mary Relotto moved her 90-year-old mother into her Columbus home last fall, she realized she would need help. While family members can perform nursing tasks for a loved one at home, state regulations restrict the tasks that hired caregivers can provide. Home health aides can assume many tasks, but nurses must perform others, including the administration of medications. Relotto, a 52-year-old business consultant, said she wanted more flexible options. “If I’m the responsible party, then …