§ 489-fffff. Conversion of property. 1. Any recipient whose property
is the subject of a certificate of eligibility pursuant to this title,
and who converts square footage within such property from the
residential and commercial uses authorized pursuant to this title where
such conversion results in twenty-five per centum or less of the
aggregate floor area of such property being used or held out for use as
commercial, community facility or accessory use space, shall cease to be
eligible for further exemption as of the last date to which such
recipient proves by clear and convincing evidence that more than
twenty-five per centum of the aggregate floor area of such property was
used or held out for use as commercial, community facility or accessory
use space, and shall pay, with interest, any taxes for which an
exemption was claimed after such date, including the pro rata share of
tax for which any exemption was claimed during the tax year in which
twenty-five per centum or less of the aggregate floor area of such
property was used or held out for use as commercial, community facility
or accessory use space.

2. Any recipient whose property is the subject of a certificate of
eligibility pursuant to this title, and who uses such property, or any
portion of such property, for any restricted activity prior to the
expiration of the benefit period, shall cease to be eligible for further
exemption as of the last date to which such recipient proves by clear
and convincing evidence that such property, or any portion of such
property, was not used for any restricted activity. Such recipient
shall pay, with interest, any taxes for which an exemption was claimed
after such date, including the pro rata share of tax for which any
exemption was claimed during the tax year in which such use occurred.