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.
Fail to recruit somebody into your coterie.
Agathon came to your help in the grand finale.
Complete D'Angelo's questline.
Meet somebody you used to know in life as the Brujah.
Complete Agathon's questline.
Hope came to your help in the grand finale.
Complete Adelaide Davis' questline ("Somebody's Watching Me") as her bitter foe.
Complete Frank Dougherty's questline ("A Nosy Reporter").
Complete Hope's questlline.
Complete Tamika's questline.
Accept your fate in Elysium.
Become Embraced into the Toreador clan.
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.
Tamika came to your help in the grand finale.
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 latest obsession.
Meet somebody you used to know in life as the Ventrue.
Convince D'Angelo to cooperate with you.
Convince Agathon to cooperate with you.
Convince Tamika to cooperate with you.
Convince Hope to cooperate with you.
Become Embraced into the Ventrue clan.