[mikey_hates_everything]

"Unfortunately, our houses do not meet the requirements of strictly Jewish-Orthodox groups"

I don't know the full extent of what Orthodox Jews do to their homes but it sounds as if at the very least, mezuzahs have to be removed and the door frames repaired after they occupy a rental.

[lightman]

Might require automatic light switches and plumbing fixtures so that no “work” is performed on the Sabbath.

Seriously....like the elevators in Israel stopping at every floor.

[11th_VA]

A Mezuzah is a small, decorative case which Jewish households attach to the right doorframe of the entrance to their home. And in fact, the word 'mezuzah' means doorpost in Hebrew. This practice has been in Jewish tradition for thousands of years, and it plays an important cultural role in defining Jewish identity.

I think you nailed it ...

[jjotto]

Mezuzah not required for a temporary rental unless it is for more than 30 days. Mezuzahs can be affixed without permanent damage.

More likely, the complaints are directed at large hareidi families with overly indulgent parents, a not unusual occurrence.