(b) Upon filing such statement of compensation and deposit, the redevelopment agency shall forthwith cause to be recorded, in the office of the town clerk of each town in which the property is located, a copy of such statement of compensation, such recording to have the same effect and to be treated the same as the recording of a lis pendens, and shall forthwith give notice, as provided in this section, to each person appearing of record as an owner of property affected thereby and to each person appearing of record as a holder of any mortgage, lien, assessment or other encumbrance on such property or interest therein (1) in the case of any such person found to be residing within this state, by causing a copy of such notice, with a copy of such statement of compensation, to be served upon each such person by a state marshal, constable or indifferent person, in the manner set forth in section 52-57 for the service of civil process, and (2) in the case of any such person who is a nonresident of this state at the time of the filing of such statement of compensation and deposit or of any such person whose whereabouts or existence is unknown, by mailing to each such person a copy of such notice and of such statement of compensation, by registered or certified mail, directed to such person's last-known address, and by publishing such notice and such statement of compensation at least twice in a newspaper published in the judicial district and having daily or weekly circulation in the town in which such property is located. Any such published notice shall state that it is notice to the widow or widower, heirs, representatives and creditors of the person holding such record interest, if such person is dead. If, after a reasonably diligent search, no last-known address can be