Oh, it's possible with a decent screening process. No worse than
  having tenants and with the additional benefit of theoretically
  having a common set of values.

  I've had plans of such a community; in fact, my "life falls
  apart" plan is indeed, such an intentional community or a
  monastery. [I can pray for my food/shelter/friends and I'd put
  my all into it; it's all synonyms to me anyway]

  Trivia: the whole monastery system actually _started_ as
  followers of the ancient Greek philosopher Epicurus, who
  believed that Friendship and "live and let live" were the
  ultimate goalposts in life. It became extraordinarily popular.
  After a few centuries, when Christiandom became "the thing" and
  started becoming kinda mandatory, they converted the monasteries
  under the same banner, but the epicurian lifestyle (and basic
  value system) remained entirely intact, just reframed in a
  Christian context.

  So really, intentional communities are fundamentally _not_ cults
  or religious institutions, but friendship communities.
  [1]#nowyouknow

References

  Visible links
  1. https://www.facebook.com/hashtag/nowyouknow