Hospital House

In the town where I work, there is a house, built in the 1800s, that is rumored to be very, very haunted.  This picture was taken in January 2016 while 18++ inches of snow accumulated on the ground.  The house was converted to apartments a number of years ago.  The landlord told me that he has never been able to keep the basement apartment occupied for one full academic year, because of strange noises and apparitions.  Do you believe in ghosts?