Yevamos 4:7-8
Yevamos 4:7
If a man undergoes chalitzah with his brother’s widow, he is the same as the other brothers when it comes to the inheritance. If there is a surviving father, he inherits the property. If one of the brothers marries the widow, he acquires the deceased’s property; Rabbi Yehuda says that in either scenario, a surviving father inherits the property. If a man undergoes chalitzah with his brother’s widow, he may not marry her relatives, nor may she marry his. He may not marry: her mother; her maternal grandmother; her paternal grandmother; her daughter; her daughter’s daughter; her son’s daughter; her sister in her lifetime. The other brothers, however, may marry these relatives. She may not marry: his father; his paternal grandfather; his son; his son’s son; his brother; his brother’s son. If a man performs chalitzah with a widow, he may marry a relative of her co-wife but he may not marry a co-wife of one of the forbidden relatives.
Yevamos 4:8
If a man undergoes chalitzah with his brother’s widow, and another brother marries her sister and then dies, the new widow only undergoes chalitzah; she does not perform yibum. Similarly, if a man divorces his wife, and his brother marries her sister and then dies, she is exempt from both yibum and chalitzah.