They are the codes you operate your business by.Also you should be aware that when starting out if you are uncertain how to deal with tenants and are uncertain as to how to implement practices due to personal emotional conflicts you would be advised to hire a property manager. 

He rejected the vacant possession contingency to avoid conflicts with him. 

Get rid of both tenants you are not their social worker and should stay out of tenant conflicts. 

If you feel uncomfortable or think a conflict may arise, have a process server do it for you.

Especially when the potential goals in this instance are obviously going to conflict. 

I get a bit of conflicting information when reading tenant screening blogs.

@Alexander Felice just because a bar or any other place of business can ban guns from the establishment why would anyone want to ban an american from a constitutional right.... weather if your room mate or if your a mogul will hundreds of properties a tenants only responsibilities in my eyes are to pay rent on time and return the unit in as good a condition they got it in... political issues and personal beliefs aside if your are providing someone a home why would you want to cause a conflict with a tenant over personal beliefs.... a gun is tool just like a hammer and if i had a room mate who woke up at 3am and decided to murder me in my sleep i would hope he shoots me in the head instead of bashing me with a hammer a bunch of times.....If your concerned about guns and other tools than maybe you should move to some european nanny state and pay 2 times the taxes 4 times for the cost of gas but hey you'll get free health care but you won't be able to get a job because they have strict work visa requirements and people out there don't hire illegals like we do here so take your pick... but if your going to live in this country and provide other people a place to live you shouldn't be limiting religious freedoms or rights to protect themselves or speak freely... and regardless of what you feel about the topic its BAD FOR BUSINESS and we are all here for advice in investing right?

There is a conflict of interest at some point.  

After being fed up with conflicting advice on detector locations from 3 city and state inspection agencies, I took a floor plan of a unit down to the city FD to have them tell me where to locate them.  

But that conflicts with the fact that it is "discriminatory" to tell people that you do not accept Section 8, or to refuse to accept it.