Photo by Phil Grout
Sometime around noon Monday, Flannery McArdle, 21, will roll into Baltimore on a 4,000-mile bike trip from San Francisco to Boston Harbor to raise money for HIV/AIDS research. And her first stop, with 17 other riders following, will be to her family’s house on Uffington Road in Mount Washington. After nearly eight weeks of camping out or depending on the kindness of strangers for housing and food, she can sit down to a home-cooked meal, at a backyard barbeque that her family is planning…