I want to know about adverse possession law in Texas

How do I claim property left vacant that I maintain

You wait as many years as required by your state and then apply to the court. Often either 7 or 10 years.
But you may not win if the property is a building, or if it's vacant land without any boundary dispute. Just because someone doesn't 'maintain' a property and you do doesn't guarantee adverse possession. Who has been paying the taxes?

You usually have to have some legitimate claim to the property. You can't perfect title by simply maintaining it, knowing it's not yours.

Please do not start multiple threads for the same issue.

Threads merged

You need to give us more details about the situation. But this site is very good for Adverse Possession rules in TX

Adverse Possession in Texas (http://www.lonestarlandlaw.com/Adverse.html)