Having female servants involves great danger and much trouble. This is because it is impermissible for a Muslim man to stay alone with a nonMahram (not a spouse or an unmarriageable relative) whether she is a servant, a sisterinlaw, a paternal or maternal uncle's wife, a female neighbor or any other nonMahram woman.
If man stays in seclusion with a woman (not a spouse or unmarriageable relative), Satan is to be their third (companion).
Therefore, it is impermissible for a man to stay in seclusion with a nonMahram woman whether she is a servant or any other woman. It is impermissible for him to import Kuffar (disbelievers) servants, workers, or maids for employment to the Peninsula.
And if you obey most of those on the earth, they will mislead you far away from Allâh's Path. They follow nothing but conjectures, and they do nothing but lie.
On the other hand, this is permissible if there is a necessity for this, such as the Muslims need for doctors or workers, if the ruler sees it is necessary to temporarily bring them for the interest of all Muslims, as what happened when the Prophet (peace be upon him) used the Jews in Khaybar for one of the Muslims' needs, then they were expelled by `Umar (may Allah be pleased with him) when there was no further need for them. The same is true if they come without having residence to benefit Muslims, such as those who come for a fixed duration to sell commodities. To sup up, it is impermissible to employ nonMuslims except in urgent cases which are seen to be so by the ruler.