In the State of Maryland, you must have lived separate and apart, without cohabitation for a period of one year. It does not matter if you have children or not, you will still need to be separated for this long. To make things easier, it is best to have a Separation Agreement done if you two can agree on everything. That way, when the year is up, the divorce can be done quicker. If no agreement is made, the divorce is contested, leaving anywhere from 4 months to a whole other year for hte divorce to be final. If you have children, you may be able to get a court hearing in before the year of separation, to determine where the children will reside, who will have custody, etc. It can be a long road, and it is best for the children, if the parents are able to work together and come to an agreement (and hopefully the parents will continue to agree on things in the future, otherwise, it gets nasty).