If a third party acquirer of a mortgaged immovables makes a claim for the extinguishment of a mortgage, that third party must send the documents stated below to each registered obligee:
抵当不動産の第三取得者は、抵当権消滅請求をするときは、登記をした各債権者に対し、次に掲げる書面を送付しなければならない。
a document that specifies the cause and date of the acquisition, the name and address of the assignor and the acquirer, the nature, location and price of the mortgaged immovables and burdens of the acquirer;
取得の原因及び年月日、譲渡人及び取得者の氏名及び住所並びに抵当不動産の性質、所在及び代価その他取得者の負担を記載した書面
a certificate of registered information regarding the mortgaged immovables (limited to certificates certifying all registered information currently in effect); and
抵当不動産に関する登記事項証明書（現に効力を有する登記事項のすべてを証明したものに限る。）
a document to the effect that, if an obligee does not enforce the mortgage by filing a petition for auction within two months, the third party acquirer of the mortgaged immovables will pay the price provided for in item (i) or an amount specifically fixed in accordance with the order of priority of claims, or deposit the price or that amount with official depository.