You will DEFINITELY get a full ride providing that they have not run out of money.
But honestly, you could get a full ride with that LSAT score at a lot better schools than John Marshall unless there is some issue I am not aware of. For instance, in the Chicago area, Chicago-Kent, Loyola-Chicago, and DePaul would probably offer you very very large scholarships and you would have a chance at Northwestern as well (But probably not for big money).