Hello soror, I'm new to the DC area (via Tennessee). There are three grad chapters in DC but there are several in the surrounding metro area. The oldest is Xi Omega, then Xi Zeta Omega and Rho Mu Omega. I met some sorors from Xi Zeta Omega and got to attend one of their meetings recently. They have a website,
www.aka-xzo.com and they have a contact number where you can leave your information. According to the site, someone should contact you. Email me and I can give you a little more info. Hope this helps.