Нда, все еще сложнее, чем я думал. Оказывается, это регулируется и на федеральном уровне и на уровне штатов, округов, и, наконец, какие-то степени свободы могут быть у владельца комплекса:
http://www.fairhousing.com/index.cfm?me ... keatingmmo
Specifically, the Department believes that an occupancy policy of two persons in a bedroom, as a general rule, is reasonable under the Fair Housing Act. The Department of Justice has advised us that this is the general policy it has incorporated in consent decrees and proposed orders, and such a general policy also is consistent with the guidance provided to housing providers in the HUD handbook referenced above. However, the reasonableness of any occupancy policy is rebuttable, and neither the February 21 memorandum nor this memorandum implies that the Department will determine compliance with the Fair Housing Act based solely on the number of people permitted in each bedroom. Indeed, as we stated in the final rule implementing the Fair Housing Amendments Act of 1988, the Department's position is as follows:
[T]here is nothing in the legislative history which indicates any intent on the part of Congress to provide for the development of a national occupancy code. * * *
On the other hand, there is no basis to conclude that Congress intended that an owner or manager of dwellings would be unable to restrict the number of occupants who could reside in a dwelling. Thus, the Department believes that in appropriate circumstances, owners and managers may develop and implement reasonable occupancy requirements based on factors such as the number and size of sleeping areas or bedrooms and the overall size of the dwelling unit. In this regard, it must be noted that, in connection with a complaint alleging discrimination on the basis of familial status, the Department will carefully examine any such nongovernmental restriction to determine whether it operates unreasonably to limit or exclude families with children.
Age of children
The following hypotheticals involving two housing providers who refused to permit three people to share a bedroom illustrate this principle. In the first, the complainants are two adult parents who applied to rent a one-bedroom apartment with their infant child, and both the bedroom and the apartment were large. In the second, the complainants are a family of two adult parents and one teenager who applied to rent a one-bedroom apartment. Depending on the other facts, issuance of a charge might be warranted in the first hypothetical, but not in the second.
State and local law
If a dwelling is governed by State or local governmental occupancy requirements, and the housing provider's occupancy policies reflect those requirements, HUD would consider the governmental requirements as a special circumstance tending to indicate that the housing provider's occupancy policies are reasonable.
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. По крайней мере, если он родился уже после того, как аппартмент рентован, то не выгонят и не заставят снимать больший. Чтобы с маленьким ребенком не хотели сдавать - не сталкивались.
И в тот же день в апартменсах напротив, с еще лучшими условиями, мы сняли больший large не вписывая 20-летнего сына. Без проблем жили так два года. 
