What is the ruling on bringing a Christian domestic worker to Medina, despite stipulating Islam to the recruitment office, and discovering her Christianity after her arrival, and her offer to embrace Islam to stay?

A disbelieving woman must be invited to Islam. If she embraces Islam, her conversion should be accepted, even if her motive is worldly, for perhaps her Islam will improve. If she does not embrace Islam, she must be expelled from the Arabian Peninsula, in accordance with the command of the Prophet, may Allah’s prayers and peace be upon him. The Arabian Peninsula is defined as the area between the valley [Wadi al-Qura] and the furthest point of Yemen, including Medina and its surroundings, such as Mecca, Yamama, Khaybar, Yanbu, Fadak, and their dependent regions.