I went the same route 3 years ago. There were too many hoops to jump through to get our friend ordained and DC didn’t recognize online routes, so we had a registered reverand meet with us and did 3 hour-long sessions with her for her to feel comfortable signing our marriage license. On the day of the wedding, she was in attandance at just the ceremony and signed the actual license, but our friend conducted the ceremony. Her name was Rev. Julia Jarvis, she works out of the Interfaith Families Project of Greater Washington (Takoma Park).