What is Apartment Hotel?

Legal Definition
An apartment hotel (also residential hotel, or extended-stay hotel) is a serviced apartment complex that uses a hotel-style booking system. It is similar to renting an apartment, but with no fixed contracts and occupants can "check-out" whenever they wish.

The standard zoning definition in the United States is:

"Apartment hotel means a building designed for or containing both apartments and individual guestrooms or rental units, under resident supervision, and which maintains an inner lobby through which all tenants must pass to gain access to apartments, rooms or units."

An apartment hotel complex usually offers a complete fully fitted apartment. These complexes are usually custom built, and similar to a hotel complex containing a varied amount of apartments. The length of stay in these apartment hotels is varied with anywhere from a few days to months or even years. The people who stay in apartment hotels use them as long-term accommodation; therefore, the hotels are often fitted with most things the average home would require.
-- Wikipedia
Legal Definition
A home in a motel that provides suites on a monthly basis instead of rooms on a nightly basis.