Any letting of 30 days or more is a 'Long Term Rental' under Sec. 6-150.1 and falls outside Portland's STR rules (though it still requires long-term rental registration under Article VI). Owner-occupants may register up to five owner-occupied STR units (e.g., separate bedrooms) within their primary residence under Sec. 6-153(h)(f).
Sec. 6-150.1 defines a 'Long Term Rental' as 'the letting of a rental unit in whole or in part for thirty (30) days or more,' and a 'Short Term Rental' as 'the letting of a rental unit, in whole or in part, for less than thirty (30) days.' Extended home-share style stays (30+ days) are treated as long-term rentals, which Article VI separately registers; they do not count against the 1.5% non-owner-occupied cap under Sec. 6-153(b). Sec. 6-152(c) lets a host register multiple owner-occupied units (bedrooms or separate spaces) within their primary residence on the cumulative-fee tier ($100/$250/$500/$1,000/$2,000), and Sec. 6-153(h)(f) explicitly permits up to five such units in a single primary residence. Occupancy in any STR is capped at two guests per bedroom plus two additional guests under Sec. 6-153(a). Maine's 9% lodging tax under 36 MRS Sec. 1811 applies only to rentals 'of less than 28 days' - so a 28-day or longer home-share stay falls outside the lodging-tax base as well as outside Portland's STR cap framework.
Treating a sub-30-day stay as a 'long-term' rental to evade the STR cap or registration scheme is a violation of Sec. 6-151 (failure to register) and Sec. 6-155(a), (d), and (e). Exceeding the two-guests-per-bedroom-plus-two occupancy ceiling under Sec. 6-153(a) is a violation enforceable under Sec. 6-1. Penalty for false information remains $1,000 under Sec. 6-155(d).
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