I don't have time to argue with tenants and I will tell you that this has happened...only when a tenant's lease was set to expire in 6 months.They were long term tenants (5 years) and behaved themselves until they bought a place and were set to move out. 

Do you require her to have insurance for this business, since she'll be having strangers come over for this business? 

What this article completely fails to address, is that the reason landlords are behaving this way, for the most part in SF, is because of ridiculous rent control laws there. 

If the dog doesn't behave well in front of you, it will not behave well in front of any other stranger (repairman, mail carrier, etc).  

I would rather have a service animal because the are well behaved and they are treating a legitimate disability.

So far most tenants have cats and most cats are well behaved.

It should be pretty easy to legally deny them all, though, because most will behave like this one did - do things that you can deny them for and justify as not meeting your reasonable criteria.

It will not affect your FICO score because the credit cards are on your business and not on your personal. you can maximize the cards but your personal  utilization rate will not be have negative effects.  

Tenant sworn dog was trained and well behaved and on day 2 of the pet's arrival we have damages to the front door and one interior door (as well as some furniture damages but those are not mine).So I am trying to decide how to go about deciding whether to replace an item or repair an item.For example, this is the corner of an interior hollow core door, the entire corner has been chewed out. 

And it has to behave.