Here is the full list of all 28 Vampire: The Masquerade - there are Coteries of New York achievements.
D'Angelo came to your help in the grand finale.
Complete Benoit Segal's questline ("Faith and Myth").
Complete Adelaide Davis' questline ("Somebody's Watching Me") as her bitter foe.
Try running away from Qadir during your trial.
Complete the game with all three characters.
Complete Adelaide Davis' questline ("Somebody's Watching Me") as her latest obsession.
Meet somebody you used to know in life as the Toreador.
Fail to recruit somebody into your coterie.
Become Embraced into the Toreador clan.
Meet somebody you used to know in life as the Ventrue.
Become Embraced into the Ventrue clan.
Rage against your fate and complete the game with any character.
Agathon came to your help in the grand finale.
Tamika came to your help in the grand finale.
Complete Tamika's questline.
Complete Hope's questlline.
Convince Tamika to cooperate with you.
Complete D'Angelo's questline.
Meet somebody you used to know in life as the Brujah.
Convince Hope to cooperate with you.
Complete Agathon's questline.
Convince D'Angelo to cooperate with you.
Convince Agathon to cooperate with you.
Become Embraced into the Brujah clan.
Complete Frank Dougherty's questline ("A Nosy Reporter").
Accept your fate in Elysium.
Hope came to your help in the grand finale.
Nobody came to your help in the grand finale. Except for...