I’ve been watching some videos and reading posts on the forum and I’ve learned quite a few things.  

Unless you are talking about an owner-occupied dwelling with 4 units or less, you cannot discriminate against a tenant with an ESA and you must allow that animal. 

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I have installed their video intercom system in 2 commercial buildings in NY, it integrate with any type of door strike or magnetic lock, and the video quality is amazing. it doesn't require any phone line or data connection.

They started allowing accessory dwelling units for owner occupants and have been trying to open up more areas for MF. 

I love this site and I'm addicted to the biggerpockets videos on youtube.

So, while the dwelling coverage in a landlord insurance policy may help with the repair bills if a tenant inadvertently damages the unit while moving furniture, the costs of cleanup if you discover a disgruntled tenant spray-painted the walls may not be covered.”Do you know of a carrier that does cover he above?

There’s a YouTube video for everything.

I can see in places like CA where they might be more popular but on entry level to mid level houses many will not want to spend the money.My picture and video guy does mainly weddings now as his bread and butter and corporate company pics to use on marketing materials and websites. 

That's why many brokerages offer sales training to new agents.Second, there are a lot of good resources out there for new agents in the forms of articles, books and (I'm certain they must exist) Youtube videos.