The girls lacrosse postseason is picking up in the Baltimore-DMV as Maryvale Prep remains the No. 1 team in the High School on SI DMV Top 25. The Brooklandville, Md. school look to claim a second straight Interscholastic Athletic Association of Maryland (IAAM) A Conference title this week. The Lions host No. 8 Notre Dame Prep (Md.) in the semifinals Tuesday. The winner will play No. 4 McDonogh School (Md.) or No. 9 Saint Paul’s School (Md.) in the final, Friday evening at USA Lacrosse’s Tierney Field in Sparks, Md. No. 2 Our Lady of Good Counsel is the favorite to continue its reign in the Washington Catholic Athletic Conference.   The Falcons, seeking a fifth consecutive crown, host Elizabeth Seton (Md.) or Bishop McNamara in a quarterfinal Tuesday.  The WCAC final is scheduled for May 11 at Georgetown University. No. 5 Stone Ridge School of the Sacred Heart (Md.) and No.…