Attribution Rules for Family Limited Partnerships

How is a Family Limited Partnership (FLP) considered for controlled group rules? Specifically, when multiple companies are involved and individuals own portions of some of the companies (perhaps constituting a brother-sister controlled group or combined via ASG rules) and then the same individuals own other companies but only through an FLP. 

An FLP is an LP, which is a P. Generally, there is attribution (i.e., the partners are treated as if they owned the stuff owned by the partnership) to partners owning a 5% or greater interest. 1563(e)(2). This is only a general outline of the applicable legal provisions responding to your general question, JustMe.