I know she doesn't have any money, so in exchange for her room and board, she will just have some chores to do around the house, like cut the grass in the backyard, wash dishes, just normal household chores that need to be done anyway
Not a good idea. if she is to work for you in the house, shop, stoor, or office you need to pay at least mininium wage and charge her for the room. slavery is not cool even if you don't see it that way.
i wish i had a free maid, wait, no i don't.