Maurice Lamm
A Convert Cannot Reject Jewish Law
This legal opinion from the Masorti (Conservative) movement in Israel takes the lenient opinion that a convert should not explicitly reject any Jewish law.
Acceptance of the Yoke of the Commandments
Kabbalat ol ha-mitzvot (acceptance of the commandments) combines faith and action with an intent to evolve as a practicing Jew.
Objecting to Conscientious Objection
According to at least one scholar, Jewish tradition does not recognize the right of personal conscientious objection.