Sec. 160.607. TIME LIMITATION: CHILD HAVING PRESUMED FATHER. (a) Except as otherwise provided by Subsection (b), a proceeding brought by a presumed father, the mother, or another individual to adjudicate the parentage of a child having a presumed father shall be commenced not later than the fourth anniversary of the date of the birth of the child.(b) A proceeding seeking to adjudicate the parentage of a child having a presumed father may be maintained at any time if the court determines that:
(1) the presumed father and the mother of the child did not live together or engage in sexual intercourse with each other during the probable time of conception; or
(2) the presumed father was precluded from commencing a proceeding to adjudicate the parentage of the child before the expiration of the time prescribed by Subsection (a) because of the mistaken belief that he was the child's biological father based on misrepresentations that led him to that conclusion.
It appears your husband was involved with his wife at the time to believe the child could be his. That would preclude section b from applying. That means he had 4 years from the time of the birth to object to the assumption of paternity. His homelessness and such does not allow for an extension of the time. The state simply expects you to act if you believe there is reason to.
unless the step father is willing to adopt, I believe your husband is stuck with the status quo
while he has a right to seek visitation, do you really believe that to be in the best interest of the child? Does the child know anything about you? I know it may sound callous but maybe it would be better to not put the child in this position.
is your husband willing and able to sustain a parenting order either from Texas or Florida (Whichever state has jurisdiction)? Is he willing and able to pay the transportation costs for the child to visit him? Is he willing and able to go to Florida for however long the courts would require so as to be able to establish some basic relationship with the child before expecting the child to go to Missouri?

