Couple of options available.
As mentioned previously, if you can get over to Maryland easily look at MSI classic or rec.
https://www.msisoccer.org/Default.aspx?tabid=1021046
If you can cross into VA easily Arlington soccer has a pretty robust high school league
http://www.arlingtonsoccer.com/programs/recreation/rec-clubs/high-school-soccer/
Suburban friendship league is rec soccer for older ages when the clubs don't have enough players for a house league. You can check her age group Soccer on the Hill is in DC and has teams in most age groups, but sometimes DC Stoddert or other clubs also have teams in this league.[url]
https://sites.google.com/site/soth4444/soccer-on-the-hill[/url]
https://www.sflsoccer.org/