We have been here 12 years and I think within a few years of that the previous owners had done a lot of shotty work to it to make it look good. We are however getting ready to do a lot of maintenance work soon like new roof new furnace and new siding and porches. So yes I think we will have a pretty active house soon.

Your house is lovely! Did you do a lot of renovations on it when you moved in?  Could that have started activity?  Did you have any articles by older tenants left in the attic or basement?  If there was anything left, you can sometimes find out a lot about them.   Sometimes they can be attached to something there.  They will also use those areas as refuge.  Just a thought.  Ali