The only difference between family and individual is under the family package, any issues with any one of the application will affect time line for the rest of the applications. Since with family applications, everyone will be doing the oath same time. If one spouse has an issue with his/her application the other spouse and children will have to wait until the application is resolved before moving on.
I don't think family or individual will have any impact of whether RQ's are issued. If one of the application residency is questioned, a RQ will be issued regardless if application is family package or not.