Martial property refers to all proprety, including debts (marital debt) and other financial commitments, that is acquired by either spouse that is legally married AFTER the effective date of the marriage. This date can be found on your marriage license.
The following is NOT considered to be marital property:
gifts or inheritances
any property acquired while legally separated
proprety excluded in a legally-binding agreement, such as a prenuptial agreement
property acquired before the marriage