In Texas, foundation lifetime warranties typically imply lifetime of the structure and if the seller is advertising it, most likely it will transfer to a new owner. Of course you should verify, but that is typical. These warranties came into existence a long time ago because 90% of these repairs require future adjustments. How do you know if you need an adjustment? You doors start sticking and your sheetrock starts cracking. The warranties will not typically cover damage that occurs to other items than the foundation, such as but not limited to sheetrock and plumbing, that occur due to future movements. The warranty covers the cost to re-level the foundation and then you fix everything else. Soil movements are extremely common in Texas, but even so, I am not very turned on by these properties. You can find houses that don't have issues.