When considered a Justicar, he is also implicitly considered Camarilla.

When he changes Sects, he can't play votes that "requires a titled camarilla Vampire" (e.g. Camarilla's Iron Fist)

Keeps their title and votes if they changes sects.

When meeting a title requirement for a political action, the vampire does not get the title's votes for the subsequent referendum.

Can meet a sect-specific title (e.g. Justicar) requirement even if the sect does not exist anymore (eg. Fall of the Camarilla).

The ability ability cannot be used to fulfill card requirements if they are not played normally, like when using Concealed Weapon for an equipment or Piper or The Summoning for an ally.

When meeting a requirement to play a card, the vampire is treated as such for all the effects of the card, and only them, including duration effects. The vampire is not treated as meeting the requirements for effects the card has from being in play.