Give me a call and let's talk. I'm licensed in DC, MD and VA and we might could work something out.
If you'll email me the address of your condo, I'll pull a quick CMA to see what we can list it for.
At a quick search of 1BR condos in Dupont, only 8 are listed at less than your purchase price. There are 45 1BR condos listed higher than your purchase price, but I can't compare those properly without knowing the details on yours.
Kangal Real Estate
So, the hurdle you've got is the Dupont Circle condo. It's easy for an agent to submit an offer quickly--that can be done in a matter of hours.
One suggestion: There may not be too much you can do creatively with the Dupont Circle condo, but there are a number of ways to get creative with your offer on the new place you're looking at.
And I'd be glad to refer you to a Realtor in D.C.
Hope that helps.