Could be property damage, breaking leases, evictions etc.

That way if the car of a guest is damaged, I will not be held liable. #2 - Add Signage so that in the event somebody ignores the policy, the signage is there for further protection. #3 - Notify my insurance company of this policy so in the event there is damage to a visitor's car, they are aware of the policy and will deny any claim against them for damage to a guest's vehicleI'd like to hear from those of you in MA who have had similar situations with damage to vehicles from falling ice and how you have made changes to your policies to limit your insurance exposure. 

I am looking for good answers to that question that will not make the remaining resident look like the bad guy, and also answers that not upset resident that we are kicking out so we can avoid them doing any damage to the property.  

Instruct the tenants not to use chemicals in the toilet tank, especially chlorine tablets, as they damage flappers and other parts inside the toilet tank. 

(B) If the landlord makes an entry in violation of division (A)(8) of this section, makes a lawful entry in an unreasonable manner, or makes repeated demands for entry otherwise lawful that have the effect of harassing the tenant, the tenant may recover actual damages resulting from the entry or demands, obtain injunctive relief to prevent the recurrence of the conduct, and obtain a judgment for reasonable attorney's fees, or may terminate the rental agreement.

You need to remove the personal element from this business relationship.  

What are the elements of a good "system"?

Factor in that you have more repairs, more trouble on average with tenants, more damage, more likely to need to evict, more likely to be vandalized during vacancies, etc, etc.If you had easier properties, would you not have more time to work on your business to grow it?

Regarding the bent up and damaged screens... that's usually caused by someone locking themselves out.

It covers damage to personal property within the condominium as well as personal liabilities.