picked up the game in december for Christmas and just finished the main quest. Visited everywhere even Goodneighbor many times. But i have yet to do the Bobbi side quest. there are 3 men in front of the door but they dont say anything. and nothing happens at the door, because Bobbi is suppose to talk to you behind it. Did i do something wrong? Any help would be greatly appreciated.!

That is the most bugged and glitched quest I have ever done, I had to reload nearly a dozen saves to finally finish that piece of crap.

I had someone mention ( think a guard ) that I needed to " make friends" and to talk to bobbi. It then gave me the quest to talk to her. Not sure if you got that part yet. Can miss it if you haven't been around goodneighbour long. Try walking around the guards and maybe even the third rail till someone mentions it

A random NPC needs to mention while passing Goodneighbor that Bobbie no nose is looking for helper. I'm not sure if the quest can still be activated after the ending though since I get Hancock pretty early every time.

The only time I've seen three men in that ally is on the Silver Shroud quest.

So, if you have the Silver Shroud quest in your log, do that one first to get rid of the guys. Maybe that will help with getting to Bobbi.

Ive always had those guys in the alley, never knew they were SS related as I never did that but I usually farm kill them with the other gangsters in GN. That might be a trigger, try doing the other stuff in GN and explore the third rail/talk to barkeep.