Do you think this is reasonable or unhealthy. 

For whatever reason there's clearly some unhealthy instability there.

Not sleeping can lead to health problems and what good is money if you are unhealthy? 

For that matter, plenty of people who share a lease eventually establish their household systems but it's unhealthy- and everyone can't wait for the lease to end.I love your priorities, so I'll respond to each how a complete household system and a property management that does some sort of CPM tha supports this system serves these essential PM priorities:1) The Right People: a complete household system attracts the right people and repels the people that would cause problems (even if they have clean records). 2) Minimize Vacancy/TO: a complete household system is one where people want to move in and stay there for years and years, rather than merely stay there until they can afford to do otherwise. 

That is a very unhealthy condition and a few economic ripples combined with some vacancies and urgent repairs can sink that portfolio.In the end it's a balance between growing wide and deep.