I have a FB page but it is 'public' as it is more for 'advertizing' verse parent communication and any photos shared on it I have written consent on file for .... my business website has a 'members only page' that is password protected and I can manage the passwords and access when clients leave and so forth ... this is where I share anything private with clients like my newsletter, calendar, photo documentation of the entire group and so forth and again they sign permission for it to be 'shared' in that manner cause again while it is private and password protected it is still the 'internet' and nothing is truly private or secure on here to the savvy hacker

I know you can have 'closed groups' on FB but I am not sure how inviting or deleting membership works on them for clients who 'leave' your program ... but most of FB has options where you can 'block' certain people from seeing things so if you cannot 'delete' someone from a group unless they choose to leave it I imagine there is someway you could always just 'block' them from seeing anything via the privacy settings?