never heard of any rules were there cant be members of another family well another inducts a new guy. theres old fbi file ray patriarca inducted 6 genovese guys because vito couldnt be there. bill bonanno said all types of bosses was at his. i think they are buffalo lcn members technically but now the bffalo family is borderline defunkt. there grandfather had them indcucted there so rizzuto couldnt hit them like scafo had his son made by the luchese as extra protection from merlino and company. now the violi had made inroads with the new mob guys from italy. imo