Has anyone implemented this strategy before? 

If they rusted out, the carbon monoxide and other combustion fumes will get into the airflow and poison people. 

Hence it's the appropriate time to nip in the bud this blatant and transparent end run around longstanding Prop 13 that was overwhelmingly implemented by the people in their direct repudiation of governmental excesses. 

We need more information and what strategy you are looking to implement?

So my brother told me about some new regulations that Raytown is implementing following the Kansas City ones or something.

I saw quite a few property managers discussing their intent to implement that for the future, but very few followed through with it when they saw the vast majority of tenants were still paying on time.

Another quick thought is when you acquire these 12 if some need work you may be able to implement the BRRRR strategy and when you do your cash out refinance on several of them or as one large commercial  refinance you are able to recapture much of your proceeds from the first flip you sold tax free (borrowed money).

@Daniel WaltonTaxes are complicated and adding a tax component would be too difficult to implement(it would have to ask you 100's of questions to get close to your tax rate).1.

If you do have an illness how have you implemented it into your plan.

John, didn't you think about implementing a recycling system one day in your buildings?