It depends on the exact language in the order, as well as, how old your child is, and some other possible facts specific to your case.

Would need to do an adoption in Texas...........................................................................

Your divorce decree should state that, but if it does not and/or you are trying to change it then if you and your ex cannot reach an agreement you...

Unfortunately, you would not be able to get a hearing quicker then the 2 weeks it is already set for............................

That will not be an issue, especially if you have a signed agreement that resolves all issues pending between the two of you and you proceed with...

you need to file a motion to modify child support with the court at least 3 months if not 4-5 months prior to the child emancipating.

the courts will look to determine the "best interests" of the child. They look at several factors. No single factor is most important. This is a...

You should have the new arrangement entered with the court so it shows you have primary custody so if there are changes in living situation the new...

Unless there is a court order stating otherwise the biological parents of the respective child(ren) have equal rights and access to the child and...

Short answer is, yes he can, longer answer, is there are possibly things you may be able to do to try and prevent it.