Housekeeper Needed

I have a three bedroom, one bathroom, 1200 square-foot house. There is a small two bedroom apartment attached to the back of it where my mother lives. We each would like someone to clean once each month. Typically, in the past it has taken cleaners about 3 1/2 hours to do my house and about two hours to do my mothers apartment. I work from home, so ideally, I would like to have someone come to my house on Saturday afternoons if at all possible. My mothers apartment can be cleaned pretty much any day of the week.