User blog comment:Shifter77/Shepard's mom WHAT!?/@comment-2079715-20120423110140/@comment-1900300-20120423145926

The only real info on family from Garrus is in ME, where he mentioned his C-Sec father. In LOTSB his text files included a conversation with his sister about his sick mother.

It is pretty understandable really why Garrus doesnt mentioned his family. His relationship with his father was strained by ME due to his hatred of C-Sec and joining up with a Spectre. and even if he wanted to join C-Sec again it didnt work out a he disappeared to Omega. He kept his family in the dark about what he was doing, so it was assumed by them he is just a drifer and moocher at best and criminal at worst. With a relationship like that it is not hard to understand why his turian family with a history in law enforcement would not have the best relationship with him