How do you approach a previous employer about working again with her? Here is a babysitting cover letter raising all your past concerns such as schedule and house rules.You should modify this cover letter according to your experience and qualifications.
Dear Madame Rouge,
Its always good to hear from you. I am in real need of extra income right now and I've always welcome babysitting jobs with open arms; As you know I am very good with children, I am firm with discipline and I don't overindulge them.
I have read your new ad placement thoroughly and I have a few concerns regarding the schedule. First, may I please request that you enlighten me a bit more about what I need to do in your household and for how many hours a day? A list of my tasks with regards to your children will make things easier for the both of us. I do not want to overstep any boundaries you may have in place with them right now. If the schedule is not too tight (like working full weekends and holidays) I would surely still consider babysitting for you in the coming months.
Thanks for considering my application.