Limited term occupancies such as B n B's are business's and may be subject to Title III of the ADA as transient housing.
I agree about B n B's but these are just houses, no one cooks breakfast for you. You would need more than 10 occupants or more than 5 guest rooms before you even would go to the IBC
310.3 Residential Group R-1. Residential Group R-1 occupancies
containing sleeping units where the occupants are
primarily transient in nature, including:
Boarding houses (transient) with more than 10 occupants
310.5 Residential Group R-3. Residential Group R-3 occupancies
where the occupants are primarily permanent in
nature and not classified as Group R-1, R-2, R-4 or I, including:
Buildings that do not contain more than two dwelling
units
Boarding houses (nontransient) with 16 or fewer
occupants
Boarding houses (transient) with 10 or fewer occupants
Care facilities that provide accommodations for five or
fewer persons receiving care
Congregate living facilities (nontransient) with 16 or
fewer occupants
Congregate living facilities (transient) with 10 or fewer
occupants
Lodging houses with five or fewer guest rooms
310.5.1 Care facilities within a dwelling. Care facilities
for five or fewer persons receiving care that are within a
single-family dwelling are permitted to comply with the
International Residential Code provided an automatic
sprinkler system is installed in accordance with Section
903.3.1.3 or Section P2904 of the International Residential
Code.
310.5.2 Lodging houses. Owner-occupied lodging houses
with five or fewer guest rooms shall be permitted to be
constructed in accordance with the International Residential
Code.
Chapter 11 does not require accessibility for guest rooms:
1107.6.3 Group R-3. In Group R-3 occupancies where
there are four or more
dwelling units or sleeping units
intended to be occupied as a residence in a single structure,
every dwelling unit and sleeping unit intended to be
occupied as a residence shall be a Type B unit. Bedrooms
within congregate living facilities shall be counted as
sleeping units for the purpose of determining the number
of units.