Even the title of your post indicates you have a misunderstanding of the business.

Don't misunderstand we don't let our tenants chill out in the property without paying but we most certainly pick out battles. 

There seems to be a general misunderstanding by several posters, that not having a written lease means you can just throw someone out.

Some seemed to misunderstand that the new tenant cannot be added to the lease: the current number of unrelated people living in the house is now a violation of county law, with this 6th tenant living there.

Hi, Joe, I haven't received your rent check yet, so I wanted to see if there's a misunderstanding." 

Oh, yes, sorry for the misunderstanding. 

As suspected, misunderstanding arose.

They responded that they don't think there will be anymore problems going forward now that they understand my personality and MY troubleshooting steps and that they only responded with logic and didn't misunderstand anything.

It can only include the rent owed, or the courts won't accept it.And I think people misunderstand CA laws.  

@Sue Kelly I think there was a misunderstanding in the way the scenarios I put out there were interpreted, but even then- I understand what you're saying completely.