The plumbing situation here worsened overnight and I had to empty the water from the bowl with a bucket to prevent overflow. A friend came and attempted to plunge and auger with no success. He called several plumbers and then went in search of another option which may not work but is worth a try.
One plumber called me back with a recommendation and someone is supposed to be here between three and five this afternoon. My friend thinks someone may have to go up on the roof and root out the problem. If so, I will need to notify my property manager.