There are tons of emotional and social impacts.

It's that and / or the wife responding to me is taking the idea of charges personally and is reacting emotionally. 

There's also the fact that if during the deal divorce comes up, might affect your friend emotionally and financially which might just blow the deal. 

Other than the emotionally uncomfortable experience you told us that you encountered during their entire process, you don't seem to have nailed down real specific ssues that you can caution someone to beware of.

Landlord has long history of unethical practices towards different tenants and causing intense emotional distress to evict tenant or backed away from agreement, possibly to position himself to get better mortgage rates (so he can make appropriate changes to properties). 

Everything is how are emotions see it.

Kimberly David, R-PorterThe bill defines the term "assistance animal" to mean an animal that works, provides assistance or performs tasks for the benefit of a person with a disability, or provides emotional support that alleviates one or more identified symptoms or effects of a person's disability, including a service animal specifically trained or equipped to perform tasks for a person with a disability, or an emotional support animal that provides support to a person with a disability who has a disability-related need for such support.

The #1 danger in real estate is not controlling your emotion.

At least that seems to be where all this emotion is coming from.

All tasks that have a high emotional labor quotient and cause burn out.