Gavin Newsom, began in March with a goal of providing temporary housing for the 15,000 people in LAHSA’s records who were 65 or older or had chronic health conditions, most susceptible to Covid-19.

That way I could easily see profits per unit and admin expenses/total business health all in one place while still keeping all of my documents, tenant leasing and contact history, etc. right now I am just too spread out using Quicken, Tellus, Evernote for document storage (receipts, bills, quotes, etc), and OneNote for process/procedure documentation (my eMyth planning In Progress).

If you determine you have legal standing to refuse, I would recommend being completely honest with these guests that you have a legitimate health concern due to your daughter's allergies, and hopefully they will be understanding and the dog can stay at home.  

I need to get in there and renovate because there are some health concerns (mold).

Sometimes bad things hit good people.You never know, perhaps he has:Covid, orLost everything, orBecome deceased, orBeen diagnosed with a major health problem, orBeen served with divorce, orBeen arrested for drunk driving, oretc...; orJust decided he doesn't like you--for whatever reason.I knew a very well to do man who fell off the radar years ago when the economy took a nosedive.

My reason for making this post is to see advice from anybody else with a demanding health condition.

It is difficult for me, however, to understand her claims that her health is being adversely affected by living in a home that I know was clean and ready for a new tenant and I never was informed otherwise.I don't want to keep her as a tenant if she proves to be a difficult tenant. 

@Kathy GreenSorry for your dilemma.

The mold is a healthcare issue and you need to prove that you have been concerned about your tenants' health, especially during the current pandemic.

Also don't think I saw anyone mention this but WiFi signal goes out and down , so putting on highest floor is the best option which also would resolve your dilemma ( until you moved).