New Jersey offers the following grounds for divorce::
Adultery
Willful abandonment that lasts at least 21 months
Physical or mental abuse
Drug or alcohol addiction
Consensual deviant sexual conduct
Mental illness resulting in 24 consecutive months or more of institutionalization
Incarceration for 18 months or more
Living separately and apart for at least 18 consecutive months
We recommend discussing your potential grounds for divorce with an experienced lawyer, especially if your spouse disagrees with how you want to end the marriage (contested divorce).