A man can betroth a number of women at once, as long as there is the value of a *perutah* for each one. And one of them can accept the betrothal on behalf of all of them, with their approval.
One who betroths two women at once, both of whom he is forbidden to betroth because of ervah (forbidden relationships), they are not betrothed. How so? As in the case of one who betrothed a woman and her daughter, or two sisters at once, who said: Behold you are both betrothed to me, they are not betrothed and neither one of them needs a get. But if he only betrothed one, and did not specify which, as [is the case if] he said to the father: One of your daughters is betrothed to me, and the father accepted the betrothal, or if two or three sisters made one of themselves an emissary for her counterpart to accept her betrothal, and he gave it into her hand and said to her: One of you is betrothed to me, they all require a get from him, and it is forbidden for him to have relations with any of them, lest she is the sister of his wife.
If he betrothed many women at once, and there were among them two sisters (or) a woman and her daughter, if he said: Whoever among you is appropriate for relations [with me] is betrothed to me, they are all betrothed to him except for the two sisters or the woman and her daughter or the like. And if he said: You are all betrothed to me, those of no relation [to each other] are betrothed and sisters are not betrothed; and there are those who say that even those of no relation [to each other] are not betrothed, therefore those of no relation [to each other] are betrothed from doubt. And if he said: One of you is betrothed to me, all of them, whether of no relation or sisters, and betrothed from doubt.
If there was among the women he betrothed a maidservant or a Cutite, or one who is a forbidden relation to him such as the wife of [another] man or his daughter or his sister or the like, and he said: Whichever of you is appropriate for relations [with me] is betrothed to me, the rest of the women and betrothed. And if he said: You are all betrothed to me, the rest of the women are betrothed from doubt.