What to do with tenants after the flood!

[Luke H.]

I'm in Houston, Texas and have 2 houses that flooded. The tenants do not want to move out. I've told them that I would replace the sheet rock in affected walls, clean the floors with disinfectant and replace the carpet.  

What do you guys advise in this situation, I've told them that I would let them out of the lease and I believe one of them have disaster assistance.  I'm not trying to get them out, but I want to make sure it is okay to let them stay while I have the houses repaired.

For me their safety is first.

Tips/advice/suggestions/comments please.
Thanks!