ยง 773. Answer. At the time when the petition is to be heard, the owner
and any mortgagee or lienor of record, shall answer in writing. If the
notice of petition was served at least eight days before the time at
which it was noticed to be heard and it so demands, the answer shall be
served at least three days before the time the petition is noticed to be
heard and any reply shall be served at least one day before such time.