I assume that he travels and doesn't care to pay full-price for an apartment, considering he will be traveling a lot and he is here on business.

Analyze carefully and feel free to tag me with any other questions on this. 

Other holding costs include insurance, utilities, and lawn care.  

Now if someone has abandoned the property and doesn't really care then that is OK.

We pick one of our favorite restaurants, book the entire place on one of their closed nights or a slow night in January, and invite our work team (plus one guest each) to join us for dinner and a celebration to show our gratitude.Most of our construction/trades contractors don't have health insurance and put off aspects of their health care.

Forget about the sons situation and take care of your business concerns.

Someone's dog had chewed the bottom cabinets in the kitchen requiring an entire replacement of these. 

If you have a good property manager taking care of it and it's not causing you any headache, I'd hold on to it!

If I am reading them right (I have the PDF's);Non-Owner OccupiedOrdinance 14-17: $100 per unit annually for units 1 & 2, $50 for unit 3 $100 per unit annually for all unit >4 (not sure if you save $50 on 3rd unit)Reading this ordinance carefully, unit 4 may not actually be coveredOwner OccupiedOrdinance 15-17:   $100 on sale of 2-3 unit  $400 on sale of 4-39 unit  $1,000 on sale of >39 unitOrdinance 16-17:   $100 on sale of Single Family HouseNot sure if these are over and above the POS inspection fee required for a sale in East Cleveland.

I'm then more likely to see how they really live, including how well they take care of our property.