(B) The board of county commissioners shall defer the collection of an assessment, except the amount of such assessment or part thereof attributable as tap-in charges, which has been deferred pursuant to division (A) of this section on or before January 1, 1987, beyond the expiration of the maximum time for the original deferment if the property owner requests in writing, no later than six months prior to the expiration of the original deferment, that the assessment be further deferred and as long as the property owner's land could qualify for placement in an agricultural district pursuant to section 929.02 of the Revised Code. The board shall regularly review the use and ownership of the property for which the collection of assessments has been deferred pursuant to this division, and upon finding that the land could no longer qualify for placement in an agricultural district pursuant to section 929.02 of the Revised Code, the board shall immediately collect, without interest, the full amount of the assessment deferred.