If I obtain guardianship in one State, If I decide to move to another State will I have to Obtain guardianship in the new state?

Guardianships can be transferred from one state to another.  In Texas you will need to hire an Approved Guardianship Attorney and to register the guardianship, take a one hour online training and submit to a criminal background check.  You can find a list of Approved Guardianship Attorneys by searching that term on the State Bar of Texas website or contacting the probate court (or county court of law) in the county to which the guardianship will be transferred.  Keep in mind that many Approved Guardianship Attorneys practice in counties near the one in which they are registered.