Laws and cases on unlawful taking

Sometimes cities make short term rental laws or other laws regarding rentals, that are so overreaching, that they may amount to an "unlawful taking" of property. For instance, an expansion of rent control laws could constitute an unlawful taking in some circumstances. Here is an info page on this issue:

law2.umkc.edu/faculty/projects/ftrials/conlaw/takings.htm