my dad has dementia and the VA hospital will only release him if he has 24 hour care I would like to bring him to a home in new jersey

If your father's dementia has proceeded to the point that he needs 24 hour care, he may well lack legal capacity to execute a Durable Power of Attorney.  If that is so, you must hire a Texas Approved Guardianship Attorney to obtain guardianship and then transfer your father and the guardianship to New Jersey. You might want to hire an attorney located near the VA hospital to visit your father.  Perhaps that attorney can determine whether your father still retains the legal capacity to grant a Durable Power of Attorney, which, from your description, seems unlikely. Please also note that even if your father has named you on a HIPAA Medical Information Release form, the VA will only release records under a court order.  It may also be a struggle to get the VA to complete a Physician's Certificate of Medical Examination.  This document is required in Texas guardianship proceedings.