Not this one....need a square level to check the floor and windo

When the dirt under the foundation does not have proper humidity and drys out the fundation can crack. I am not sure if you don't see crack the foundation still can shift.

This is a very common problem in Houston. If a house has been empty for an extended period of time and nobody waters the lawn the damage to the house can be very severe. I have seen very expensive house in which cracks at the top of the two storey foyer caused bricks to fall out.