Welcome to Thay, kane!
KTA answered your question, but I do want to point out his comment that everything else will come in time. If you work on the IC aspect of making a temple to a 'banned' religion in Thay (yes - the Red Wizards don't like anyone worhsipping Mystra or Azuth) and getting NPC and (especially) a few PC converts or sympathizers, we can help out with things like getting a NPC healer or something special.
Regardless though, being able to hire a NPC healer is something that can/will be considered as a future enhancement to the housing/building system.
KTA answered your question, but I do want to point out his comment that everything else will come in time. If you work on the IC aspect of making a temple to a 'banned' religion in Thay (yes - the Red Wizards don't like anyone worhsipping Mystra or Azuth) and getting NPC and (especially) a few PC converts or sympathizers, we can help out with things like getting a NPC healer or something special.
Regardless though, being able to hire a NPC healer is something that can/will be considered as a future enhancement to the housing/building system.