(1) (a) the owner of record of the multiple dwelling with respect to which such certification is sought was the owner of record of such multiple dwelling prior to May fifth, nineteen hundred eighty-three or had entered into a contract of sale for the purchase of such multiple dwelling which was recorded prior to such date or, with respect to a certification proceeding where the alterations sought to be performed are of the type prescribed by regulation of the commissioner pursuant to subdivision b of section 27-198 of article nineteen of subchapter one of the building code, the owner of record of such multiple dwelling was the owner of record of such multiple dwelling prior to the date of the first publication of the regulations requiring certification for such type of alterations or had entered into a contract of sale for the purchase of such multiple dwelling which was recorded prior to such date;
(b) such owner was not the owner of such multiple dwelling during any period of time in which such harassment occurred and did not at such multiple dwelling (i) otherwise engage or participate in such harassment; or (ii) with intent that harassment be performed, agree with one or more persons to engage in or cause the performance of harassment; or (iii) with intent that another person engage in conduct constituting harassment, solicit, request, command, importune or otherwise attempt to cause such person to engage in conduct constituting harassment; and
(c) such owner acquired title pursuant to a bona fide transaction that is not intended to evade the provisions of this section; or