Is it permissible for the girl's family to stipulate to the suitor that he must complete his doctoral studies?

The girl's family should not impose conditions that make their daughter's marriage difficult. The mentioned condition (the husband's mother should not interfere in the upbringing of the grandchildren) is not Islamically valid and does not have to be fulfilled, because it is neither among the requirements of the contract nor does it contradict them. However, if it contains a benefit for the woman, the majority of scholars consider it recommended, while the Hanbalis consider it obligatory to fulfill.