Washington Running Report has an article on the Washington Birthday Marathon. Relevant to us is the course record for the open men's relay:
Open Men 1998 Cumberland Valley Athletic Club 2:26:50
A 2:26:50 works out to roughly 5:36 pace, over a fairly difficult course. That is probably a little ambitious for such an early season race, but just something to keep in mind.
As of now, we have commitments from me, PJ, Alan, and Geoff. Still looking for two more folks, to either make a co-ed team, or a dueling men's open team.
We have two more commits, Sarah and David. That gives us two squads, one co-ed and one open men. Co-ed record according to WRR is:
Coed 1991 Washington Running Club 2:36:04
Jim Hage, Cathy Ventura-Merkel, Jerry Merkel
Which works out just a touch under 6 minute pace.