Copyrighted for Daas Torah
Igros Moshe(Y.D. 1:90): A boy and a girl want to get to know each other for the purpose of marriage to determine whether they will like each other. They want to know whether it is permitted to rent two separate bedrooms in one house where the owner and his wife also live. It is clear that if it is known to the owner and his wife that they are not husband and wife – there is reason to be lenient. However if they are not informed then it is possible that they might mistakenly assumed that they are married and therefore it won’t help that the owner lives there. If the owner doesn’t know that they are not married it would thus be prohibited to rent the separate rooms because the owner is no longer a protection against sin because they are not embarrassed to be alone together and other similar problems. Regarding the issue of whether it is permitted for her to prepare meals for him, it seems that there is no concern that this is prohibited according to all authorities. That is because this is not included in the prohibition of utilizing a woman’s services. This type of service is permitted as is serving as a maid – even if she does it for free. All of this is permitted according to the strict letter of the law – however in actuality it is not worth doing. A person shouldn’t try to be too “smart” in these matters. It is sufficient if she finds favor in his eyes - regarding her appearance, her family and her reputation concerning her religious observance - that he can rely on that to get married with the hope that she was the one designated for him from Heaven. It is not necessary to examine her first. Furthermore this “test” is worthless to determine if she will be a good wife. Rather the Torah tells us to be “tamim” (to have simple trust) with G‑d.