I gave parents my updated policies and contract earlier this month and will do it every Jan. But I also have it in my policies that I can change a policy at any time, but I will give a 2 week notice, that way I can change anything whenever I want.
I will admit that I would probably put a note on the door or I would put something in my newsletter. That's just me.
(I'm working on developing a backbone..
)
My parents pay 51 weeks a year. I do give them a week of vacation each year equal to the number of days that they attend in a week. Other than that, they pay regardless.