I need information on starting a business that is a senior citizens center for learning, resource center, activities, transportation, counseling, and second hand store for handicap accesible items like wheelchairs, walkers, canes, showerchairs etc...

For information go to senior centers in your area and speak with the director, each state has its own state and federal regulations, also, look to non profits for guidance and the internet. Too broad a subject for specifics.