Room wanted in Washington D.C.

I am a first responder working in the district that would like to have a shorter commute. I am also a volunteer firefighter and EMT. I am looking rent a full basement in a house for about 10 months starting June 1st. I don't drink, or smoke, and am a clean and quiet person. I have 2 cats and I am willing to pay reasonable "pet rent". I am recently separated and need a space of my own until the details of the separation are worked out which could take a year. I would prefer a month to month lease in the event a resolution comes sooner.