All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
First of all, according to the preponderant statements of the jurists, if before the marriage contract the husband and the wife or her guardian agreed on something that does not contradict the general goal of the marriage contract, then it is an obligation to fulfill it. We have already clarified this issue in Fatwa 131714. It is not necessary that this should be done in a special gathering or that it be documented; and no one other than the wife or her guardian has the right to stipulate conditions on the husband.
Secondly, covering the face for a woman is a controversial issue among the scholars. The preponderant opinion that we hold here in Islamweb is that covering the face is an obligation. For more benefit, please refer to Fatwa 92091. However, if a woman believes that the preponderant opinion is that covering the face is not an obligation, or if she follows the view of a scholar who holds the opinion that covering the face is not an obligation, then it is acceptable for her to stipulate on her husband not to cover her face, and if he agrees to that, he is obliged to fulfill it.
Thirdly, it is permissible for a woman to stipulate on her husband before marriage that she can work. In case he accepts this condition, he is obliged to fulfill it, and he is not entitled to prevent her from work except for a legitimate reason. In case she renounces this right and agrees to work from home, then she can do so.
For more benefit, please refer to Fatwa 180745.
Allaah Knows best.