Should a Sheriff decide state law?

Law enforcement officers in Chicago will no longer evict residents from foreclosed properties, Sheriff Thomas J. Dart of Cook County announced Wednesday. from NY Times

Foreclosure laws are defined by the state where the property is located, and occasionally the county where the property is located.  Why Sheriff Dart has decided to not fulfill the duties of his office is beyond my comprehension.  The article contains a fair amount of justification about renters being displaced when they’ve been dutifully paying rent to their landlord who hasn’t been making the mortgage payments.  Alrighty then.

The solution, IMHO, would be to make sure families subject to eviction as part of a mortgage foreclosure were notified well in advance of the eviction.  From most of what I’ve read on foreclosure evictions, Sheriffs can schedule evictions as quickly, or as slowly, as their workload allows if they stay within the legal time constraints in a given area.  So what’s so difficult about scheduling 45 days out and sending notice to the occupant immediately?

Renters are provided the notice they need, and local law enforcement isn’t pre-empting existing state law.
Too rational? – probably