Legal Question in Family Law in Texas

I'm assuming that the landowner has made a will.

If he doesn't change the will, then it stands, regardless of whom he's married to. I don't instantly become entitled to half of my wife's property just because I married her last week. Texas has the concept of separate property and community property.

But consider this: the will means nothing as long as the person is alive. In a divorce, the property may somehow be awarded, divided, sold, or otherwise disposed of.