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