Legal Question in Family Law in Texas

I assume that you had an attorney representing you in the your divorce. I recommend that you ask your attorney.

If the divorce is finalized, then it should not probably be a problem. I assume that your ex knew abou this "guest" during the divorce. If your "ex" did not, it could be a potential problem.

If the "guest" is a registered sex offender, it's a HUGE problem. If the "guest" brings drugs into your home, it's a problem. If the "guest" "touches" or does anything inappropriate with your child, then you will lose custody. I assume the "guest" is of the oppose sex.

Just remember, that your child is telling your ex everything (innocently) that goes on at your house when your child visits the ex. Children say the darnest things -- and those things can come back to "haunt" you. So I hope it's worth the "little bit of money" to pay the mortgage - please consider this when you pay your mortgage. Custody battles can be quite expensive.

Based on the limited information you provided, that's the best I can do.

Am a little concerned about the phrasing of your question - being 'paying guest'. I don't know what that means. If there is a material change in circumstance, the other party can petition for a modification - so if you consider making major changes in the child's home, consider it carefully, and be certain that the change will not affect what is in the child's best interest.