Legal Question in Family Law in Maryland

You should immediately seek a consultation with an experienced family law attorney to discuss whether you have grounds to file for divorce. One such ground might be desertion or constructive desertion. As part of your divorce complaint you would seek custody of your twins (the 18 yr old is an adult), and a use and possession order, plus child support and other financial relief. If granted use and possession, he would be required to vacate the premises pending the divorce proceedings. If any of his verbal abuse is physically threatening, you could also file for a civil protection order, which would get him out immediately pending a court hearing.

Of course, it would be better and far less expensive to be able to come to a global separation agreement regarding all of the above issues, but it doesn't sound like that is in the offing, although the threat of a divorce action might motivate him to get legal advice and possibly to commence negotiations to reach an agreement. Also, once a divorce is filed the parties are required to have a mediation conference at the courthouse.

The larger bar associations have referral services that entitle you to a consultation at a very low cost, and of course there is always google.