When we acquire a new property where smoking has been permitted, we establish a sunset date after which the property (not just inside) will be smoke free.  

The letter would have to include a few bullets, for example:Dear Residents:In order to provide a safe and comfortable environment for all tenants, the following rules will be enforced:•Loitering outside the building is not permitted.

This is what I think you were referring to when you said "Metrics" Here are some ideas, populations growth and forecast growth, Permits issued, new employers coming to the area, Rent vs price ratios, rent vs income ratios, Price vs income ratios, home affordability index.So how do you predict the next significant downturn.

Here is pretty much the run down of what you will need to know for each one: How many spaces is the park currently permitted for?

In a situation where the landlord has a "no pets" policy in place, you are required to submit a letter requesting a reasonable accommodation making an exception to the "no pets" rule to permit you to keep a service animal.

I already know if there are any code violations/building permit/lien issues.

Perhaps more diplomatic, rather than telling them to stop altogether, request that you be permitted to also approve any new tenants.

Pull your permits, keep them in the loop, and put it behind you. 

.- govt. permit targeting by county has become big issue like never before..militant,,theyre driving around for investors...surprise inspecting...per insurance co. pressure.- I heard famous injury attorney on my church radio today )if I understood correctly) advertising to file for lawsuits related to pipes older than 1975 not being re-plumbed by investors..so no shortcuts..extreme diligence.

Contractors and subs, permits and inspectors... throw in a partner and a bad PM and you'll really have a party!