HELP! Water leak under floor - move tenant to hotel?

[Denise Mayo-Walley]

Hello BP community! One of my rentals in Houston, TX developed a water leak over the weekend.  My handyman initially thought it was from the washing machine but it turns out that it is coming from under the floor.  I'm not happy about it.  

Apparently the water appears when the tub or the washing machine is used.  I have a plumber coming today to assess things and make recommendations but I have the feeling this will not be a small undertaking.  The couple has 2 young children anD I'm pretty sure the house will be a construction zone. They really should not turn the water on out of fear of further damage and there is already an odor from the damp carpet.

Am I obligated, or is it good practice to, pay for the tenants to stay in a hotel until the repairs are complete? If so, what is a reasonable amount to cover for a hotel room?

This is my first major issue after 2.5 years - any help is greatly appreciated!