Enrollment in schools based on Saudi residency permit

Hi,

One of my friends is planning to move his family from Saudi to Bahrain in the next academic year. Mainly to enroll his kids in reputable schools (nursery and elementary). All family members have valid Saudi residency permits. Parents are holders of Lebanese passports and Canadian residency permits and kids are Canadians. 

I read many posts in this forum but I could not find recent and similar details to my friends' case. Appreciate if you can advise if that is possible and the steps required if that is possible.

Thanks

Should not be a problem if they can get "Paper CPRs".  Search the forum for information about this.   Their nationality or residence status outside of Saudi & Bahrain is irrelevant.