Section 14. Land taxed under this chapter shall not be sold for, or converted to, residential, industrial or commercial use while so taxed or within 1 year after that time unless the city or town in which the land is located has been notified of the intent to sell for, or to convert to, that other use.

The discontinuance of agricultural or horticultural use shall not, in itself, for the purposes of this section, be considered a conversion. Specific use of land for a residence for the owner, the owner's spouse or a parent, grandparent, child, grandchild, or brother or sister of the owner, or surviving husband or wife of any deceased such relative, or for living quarters for any persons actively employed full-time in the agricultural or horticultural use of such land, shall not be a conversion for the purposes of this section, and a certificate of the board of assessors, recorded with the registry of deeds, shall conclusively establish that particular use.

Any notice of intent to sell for other use shall be accompanied by a statement of intent to sell, a statement of proposed use of the land, the location and acreage of land as shown on a map drawn at the scale of the assessors map in the city or town in which the land is situated, and the name, address and telephone number of the landowner.

Any notice of intent to sell for other use shall be accompanied by a certified copy of an executed purchase and sale agreement specifying the purchase price and all terms and conditions of the proposed sale, which is limited to only the property classified under this chapter, and which shall be a bona fide offer as described below.

Any notice of intent to sell for other use shall also be accompanied by any additional agreements or a statement of any additional consideration for any contiguous land under the same ownership, and not classified under this chapter, but sold or to be sold contemporaneously with the proposed sale.

For the purposes of this chapter, a bona fide offer to purchase shall mean a good faith offer, not dependent upon potential changes to current zoning or conditions or contingencies relating to the potential for, or the potential extent of, subdivision of the property for residential use or the potential for, or the potential extent of development of the property for industrial or commercial use, made by a party unaffiliated with the landowner for a fixed consideration payable upon delivery of the deed.

Any notice of intent to convert to other use shall be accompanied by a statement of intent to convert, a statement of proposed use of the land, the location and acreage of land as shown on a map drawn at the scale of the assessors map in the city or town in which the land is situated, the name, address and telephone number of the landowner and the landowner's attorney, if any.

The notice of intent to sell or convert shall be sent by the landowner by certified mail or hand delivered to the mayor and city council of a city, or board of selectmen of a town, and in the case of either a city or a town, to its board of assessors, to its planning board and conservation commission, if any, and to the state forester.

A notarized affidavit that the landowner has mailed or delivered a notice of intent to sell or convert shall be conclusive evidence that the landowner has mailed the notice in the manner and at the time specified. Each affidavit shall have attached to it a copy of the notice of intent to which it relates.

The notice of intent to sell or convert shall be considered to have been duly mailed if addressed to the mayor and city council or board of selectmen in care of the city or town clerk; to the planning board and conservation commission if addressed to them directly; to the state forester if addressed to the commissioner of the department of conservation and recreation; and to the assessors if addressed to them directly.

If the notice of intent to sell or convert does not contain all of the material described above, then the town or city, within 30 days after receipt, shall notify the landowner in writing that notice is insufficient and does not comply.

For a period of 120 days after the day following the latest date of deposit in the United States mail of any notice which complies with this section, the city or town shall have, in the case of intended sale, a first refusal option to meet a bona fide offer to purchase the land.

In the case of intended or determined conversion not involving sale, the municipality shall have an option to purchase the land at full and fair market value to be determined by an impartial appraisal performed by a certified appraiser hired at the expense of the municipality or its assignee, the original appraisal to be completed and delivered to the landowner within 30 days after the notice of conversion to the municipality. In the event that the landowner is dissatisfied with the original appraisal, the landowner may, at the landowner's expense, contract for a second appraisal, to be completed within 60 days after the delivery of the notice to convert. If, after completion of the second appraisal, the parties cannot agree on a consideration, the parties will contract with a mutually acceptable appraiser for a third appraisal whose cost will be borne equally by both parties. The third appraisal shall be delivered to both parties within 90 days after the notice of conversion to the municipality and shall be the final determination of consideration. Upon agreement of a consideration, the city or town shall then have 120 days to exercise its option. During the appraisal process, the landowner may revoke the intent to convert at any time and with no recourse to either party.

The option may be exercised only after a public hearing followed by written notice signed by the mayor or board of selectmen, mailed to the landowner by certified mail at the address that is specified in the notice of intent. Notice of public hearing shall be given in accordance with section 23B of chapter 39.

The notice of exercise shall also be recorded at the registry of deeds and shall contain the name of the record owner of the land and description of the premises adequate for identification of them.

The notice to the landowner of the city or town's election to exercise its option shall be accompanied by a proposed purchase and sale contract or other agreement between the city or town and the landowner which, if executed, shall be fulfilled within a period of not more than 90 days after the date the contract or agreement, endorsed by the landowner, is returned by certified mail to the mayor or board of selectmen, or upon expiration of any extended period that the landowner has agreed to in writing, whichever is later.

At the public hearing or a further public hearing, the city or town may assign its option to a nonprofit conservation organization or to the commonwealth or any of its political subdivisions under the terms and conditions that the mayor or board of selectmen may consider appropriate. Notice of public hearing shall be given in accordance with section 23B of chapter 39.

The assignment shall be for the purpose of maintaining no less than 70 per cent of the land in use as forest land as defined in section 1, as agricultural and horticultural land as defined in sections 1 and 2 of chapter 61A or as recreation land as defined in section 1 of chapter 61B, and in no case shall the assignee develop a greater proportion of the land than was proposed by the developer whose offer gave rise to the assignment. All land other than land that is to be developed shall then be bound by a permanent deed restriction that meets the requirements of chapter 184.

If the first refusal option has been assigned to a nonprofit conservation organization or to the commonwealth or any of its political subdivisions as provided in this section, the mayor or board of selectmen shall provide written notice of assignment to the landowner.

The notice of assignment shall state the name and address of the organization or agency of the commonwealth which will exercise the option in addition to the terms and conditions of the assignment. The notice of assignment shall be recorded with the registry of deeds.

Failure to record either the notice of exercise or the notice of assignment within the 120 day period shall be conclusive evidence that the city or town has not exercised its option.

If the option has been assigned to a nonprofit conservation organization or to the commonwealth or any of its political subdivisions, the option may be exercised by the assignee only by written notice to the landowner signed by the assignee, mailed to the landowner by certified mail at the address that is specified in the notice of intent. The notice of exercise shall also be recorded with the registry of deeds and shall contain the name of the record owner of the land and description of the premises adequate for identification of them.

The notice of exercise to the landowner shall be accompanied by a proposed purchase and sale contract or other agreement between the assignee and landowner which, if executed, shall be fulfilled within a period of not more than 90 days, or upon expiration of any extended period the landowner has agreed to in writing, from the date the contract or agreement, endorsed by the landowner, is returned by certified mail to the assignee.

During the 120 day period, the city or town or its assignees, shall have the right, at reasonable times and upon reasonable notice, to enter upon the land for the purpose of surveying and inspecting the land, including, but not limited to, soil testing for purposes of Title V and the taking of water samples.

The city or town or its assignee shall have all rights assigned to the buyer in the purchase and sale agreement contained in the notice of intent.

If the city or town elects not to exercise the option, and not to assign its right to exercise the option, the city or town shall send written notice of nonexercise, signed by the mayor or board of selectmen, to the landowner by certified mail at the address that is specified in the notice of intent. The notice of nonexercise shall contain the name of the owner of record of the land and description of the premises adequate for identification of them and shall be recorded with the registry of deeds.

No sale or conversion of the land shall be consummated until the option period has expired or the notice of nonexercise has been recorded with the registry of deeds, and no sale of the land shall be consummated if the terms of the sale differ in any material way from the terms of the purchase and sale agreement which accompanied the bona fide offer to purchase as described in the notice of intent to sell except as provided in this section.

This section shall not apply to a mortgage foreclosure sale, but the holder of a mortgage shall, at least 90 days before a foreclosure sale, send written notice of the time and place of the sale to the parties in the manner described in this section for notice of intent to sell or convert, and the giving of notice may be established by an affidavit as described in this section.