(O) To discriminate in the sale or rental, or to otherwise make unavailable or deny, a dwelling to any buyer or renter because of a disability of that buyer or renter, of a person residing in or intending to reside in that dwelling after it is sold, rented, or made available, or of any person associated with that buyer or renter; or to discriminate against any person in the terms, conditions or privileges of sale or rental of a dwelling, or in the provisions of services or facilities in connection with such dwelling, because of a disability of that person, of a person residing in or intending to reside in that dwelling after it is sold, rented or made available, or of any person associated with that person:
(1) For purposes of this subsection,
DISCRIMINATION includes:
(a) A refusal to permit, at the expense of the disabled person, reasonable modifications of existing premises occupied or to be occupied by such person if such modifications may be necessary to afford the person full enjoyment of the premises, except that in the case of rental, the landlord may where it is reasonable to do so condition permission for a modification on the renter agreeing to restore the interior of the premises to the condition that existed before the modification, reasonable wear and tear excepted;
(b) A refusal to make reasonable accommodations in rules, policies, practices, or services, when such accommodations may be necessary to afford the person equal opportunity to use and enjoy a housing accommodation; or