I just came across this thread and thought I'd chime in, even though it's a few years old now. The question you've asked about deducting your son's mental health offsite lodging and meals is a bit complex and certainly varies depending on tax laws, which are subject to change. I strongly recommend consulting a tax advisor for the most accurate and personalized advice.
However, I can say that caring for a loved one's mental health can be emotionally and financially draining. In case of immediate emotional stress, resources like a mental health crisis hotline can be a big help for immediate emotional support and resource direction.
