I've taken care of all of my friends pets, from little bitty 2 month olds to real old boys who need extra care. I can administer meds, but I've not trained any pets yet. I'm an anesthesiologist who works weird hours, so my schedule is inconsistent. So probably can't do anything crazy long term, but I can always fill in at those weird occasional times you need a walker! I live in an apartment, but I don't do any home services at the moment. But Bethesda has tons of places to do dog stuff outdoors.