I have two enthusiastic recommendations, depending on your neighborhood. Both are independant operators.
For Dupont/AdMo/Ustreet I recommend Fabianna Morales. She and her husband Oscar run “Faby’s Doggie Walker” and they are reliable, kind, flexible, affordable and they know everything about dogs (especially helpful when my old lab got sick). I trust them completely. Used them for 2 years and recommend them without reservation. Call Faby at (202) 725-9605.
For Shaw/Logan/everywhere else – Tori Tyree is the best. Again, she is flexible, responsible, helpful, affordable, dog-snuggling, pure awesomeness. I adore Tori and feel so lucky to have her as our walker (since we moved out of Faby’s range). Email Tori at tori.tyree at gmail
Good luck! and congrats on the pup!