In conjunction with its Spring Spruce-up Day, the Medford-Brooks Estate Land Trust will be offering Shepherd Brooks Manor between 2 and 4 p.m. Meet at the Manor; note that the last tour will begin at 3:30 p.m. Important event parking rules: It’s best to walk in at the green gate and blue sign at 275 Grove Street, and then walk up the access drive to the end. Limited spaces are available at the Boardwalk lot along the access drive, and…