East Broadway at four in the morning, plow lights swinging out toward the Merrimac line, and the whole route still ahead. Roeger Property Solutions works Haverhill winters: driveways plowed down to pavement, walkways and steps shoveled, snow blown clear of doorways, sand and salt where a slope will freeze again by dusk. The measure of a good night is a street of properties where nobody has to think about it before they leave for work. Snowbanks get set back off the apron so a car can see past them pulling out. Haverhill and the towns out toward the state line, storm after storm.