You can file for divorce in District of Columbia (“DC”) if either you or your spouse has been a resident of DC for six months before the date you file the divorce papers with the court. It does not matter where you are married. Only one of you has to meet the DC residency requirement. One can only ask for alimony and distribution of marital property in your divorce case. You will lose your opportunity to obtain alimony and distribution of marital property if you do not ask for them in your divorce case.
One may include requests for child custody and child support in a divorce case. You also can ask for child custody and/or child support in a separate case from the divorce case. In some instances a divorce can be filed in the District of Columbia but child custody and/or child support must be filed in another state. There are two grounds for divorce in DC