When accepting invites to a family it will say at the end of it the crew leader name so it will say the DeadlySpikeS crew for example. Why does it not just say the actual family name?

I think it would be a lot better if people know what they are joining. In essence it would say something along the lines of You have accepted the invite to join Czylharz Bebop Edition.

You can change it up to make it sound better if you like but I am sure you get the point.

Family name isn't something utilized, but I too, feel it's appropriate in situations like this and should be more coded in to the game. A crew leader should be able to enter their family's name so that it can be used in place of "PlayerName Crew" to avoid confusion for new players completing jobs or for http://mafiareturns.com/news/localcrews.php etc.