Pick your battles.I won't even get involved in the call out, I'll pass the tenant number to my contractor and they will make a suitable time for an appointment.

Then when the tenants mother died, she had visitors coming when her mother was on her death bed.

What this means, is that you can charge them rent until you find a suitable tenant, plus your advertising fees, etc.  

Oh, will your insurance pay should a visitor get bitten by that dog!!!

This will be my first Sec8 rental property - Is there a "standard" lease typically used with Sec8 tenants or is the TAR lease suitable?

You risk losing a tenant to gain a few more dollars, which now has to be regained over the longer term, and also poses other problems about the suitability of the new tenant that you put into your unit.You just said in your the other thread that some of your tenants try to avoid you, mine don't. 

(I believe this may be exactly what you are looking for as far as actual rent payments are concerned.)Also, for the tenant's to receive the vouchers the governing body (in this case CHA or HACC) does a decent job of helping the tenant determine what they can afford and the dollar range that would most suitable for them.  

You'd have to keep an eye on their family visitors, but that seems to be pretty manageable, from my experience in two of these buildings now.

There is a difference between a overnight guest and a extended visitor.

Are you pre-screening that they are suitable for the unit.