Hi Lana
Not an easy one I think.
The local authority should have a health and safety advisor and, unless I am mistaken, they do not charge for their visit. Maybe you could get in touch with him/her to get their views and ask for an inspection of the premises?
Would the resident have a family member that could house him/her until such time that the place has dried out a bit more?
If the walls are mouldy, this is definitely a risk to health, whether one has a medical condition or not.
The thing is, do you feel the resident is being unreasonable? Do you/the Trustees want to take the risk of the resident’s health being jeopardised or ending up with a lawsuit?
Sorry, no clear answer here…
Good luck!
Anne