Sec. 42. INHERITANCE RIGHTS OF CHILDREN
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(a) Maternal Inheritance. For the purpose of inheritance, a child is the child of his biological or adopted mother, so that he and his issue shall inherit from his mother and from his maternal kindred, both descendants, ascendants, and collaterals in all degrees, and they may inherit from him and his issue.
(b) Paternal Inheritance. (1) For the purpose of inheritance, a child is the child of his biological father if the child is born under circumstances described by Section 160.201, Family Code, is adjudicated to be the child of the father by court decree as provided by Chapter 160, Family Code, was adopted by his father, or if the father executed an acknowledgment of paternity as provided by Subchapter D, Chapter 160, Family Code, or a like statement properly executed in another jurisdiction, so that he and his issue shall inherit from his father and from his paternal kindred, both descendants, ascendants, and collaterals in all degrees, and they may inherit from him and his issue. A person claiming to be a biological child of the decedent, who is not otherwise presumed to be a child of the decedent, or claiming inheritance through a biological child of the decedent, who is not otherwise presumed to be a child of the decedent, may petition the probate court for a determination of right of inheritance. If the court finds by clear and convincing evidence that the purported father was the biological father of the child, the child is treated as any other child of the decedent for the purpose of inheritance and he and his issue may inherit from his paternal kindred, both descendants, ascendants, and collaterals in all degrees, and they may inherit from him and his issue. This section does not permit inheritance by a purported father of a child, whether recognized or not, if the purported father's parental rights have been terminated.
(2) A person who purchases for valuable consideration any interest in real or personal property of the heirs of a decedent, who in good faith relies on the declarations in an affidavit of heirship that does not include a child who at the time of the sale or contract of sale of the property is not a presumed child of the decedent and has not under a final court decree or judgment been found to be entitled to treatment under this subsection as a child of the decedent, and who is without knowledge of the claim of that child, acquires good title to the interest that the person would have received, as purchaser, in the absence of any claim of the child not included in the affidavit. This subdivision does not affect the liability, if any, of the heirs for the proceeds of any sale described by this subdivision to the child who was not included in the affidavit of heirship.
(c) Homestead Rights, Exempt Property, and Family Allowances. A child as provided by Subsections (a) and (b) of this section is a child of his mother, and a child of his father, for the purpose of determining homestead rights, distribution of exempt property, and the making of family allowances.
(d) Marriages Void and Voidable. The issue of marriages declared void or voided by annulment shall be treated in the same manner as issue of a valid marriage.