need help with terminating senior citizen lease in Texas

[Jeremy Able]

My mother has lived at an apartment complex for over 20 years.  They have recently changed management. Her lease was due to renew several months ago, but nobody gave her a renewal amidst the chaos of changing management.  She has continued to pay her rent every month. The new management has her going month to month (without a fee) until they can get everything in order and they have now given her a new lease which starts 9/1.

My mother is elderly and I asked her not to sign the lease without me reviewing it, but she signed anyway.  We are now looking at moving her into  a Senior Community asap.

How should I handle breaking this lease? She has just paid her rent for August but does not have a current lease agreement.  The one she just signed does not go into effect until 9/1.

Please help - thanks!