Is it necessary to change the wording of "Sunnah of our Lord" in a land ownership document, and is not changing it considered an act of shirk despite not being pleased with it?

"In the year of our Lord" is a Christian phrase meaning the year in which Christ was born, abbreviated as (AD). Muslims should use the Hijri calendar, and if they need to use the Gregorian calendar, there is no harm in combining it with the Hijri, while prioritizing the Hijri. It is not permissible to use the phrase "in the year of our Lord" because it contains an element of polytheism (shirk). If a non-Muslim uses it and you do not approve of it, there is no blame upon you. If you are able to change it in a document that belongs to you without invalidating it, then you must do so. For what you are unable to change, yet dislike and condemn, there is no sin upon you.