Speaking of, I need to research the min. square foot rule. This week is the first time I have heard of this.
It will vary from place to place, depending on many things,
eg, renting vs owning, shape of the space, number of
occupants, relationships of the occupants, age of the
occupants, zoning.
In my town, I ran into the problem of maximum occupancy
being based upon age & family relationship. These laws
conflicted with Fair Housing laws, which banned discrimination
based upon age & family relationship. One never knew
if government might come down like a ton of bricks cuz
there were some rental situations where no matter what
one did, it was illegal under some law.