Grundbuch (transfer of land) have been digitized in Polish archives and are available at this link: Bethel College Mennonite Library and Archive. They include the records from Malbork (Marienburg); Bydgoszcz; Gdansk, and Torun.
Link to property records from many roads website
Hypothekenscheine are available at FHL for RB Marienwerder. Ost-Abt. Rep A 181 FHL 008206574 for Prechlau.
Praestations-Tabelle von Amt Neuenburg are available at the Family History Library at this link: https://www.familysearch.org/ark:/61903/3:1:3Q9M-CSG9-V37N-L?i=170&cat=106984
They include records for Marienwerder area including Münsterwalde, Warlubien, Fiedlitz, Gross Lubin, etc. Names of Besitzer and transfers of property are included Film # 008210138
See genealogy.net http://wiki-de.genealogy.net/Deutsch_Krone