The technology is so good now that anyone with basic knowledge of lighting and framing can do almost as well as a professional photographer.

There are many national coaches and using technology, they will seem like they are next door.

They add ANYONE and everyone on their list and instead of doing effort to AT LEAST not annoy the people on their list toooo much, by doing their homework and at least see what markets they are in they massfriggingaaadamnemail the ENTIRE gaaadamn list to EVERYONE regardless whether they are even in the market that damn house is located.I wish someone would invent "nailsthroughthephone" technology where the phone shoots red hot nails through their head every time they reached someone not interested in their BS!

You can always recommend new technology that can help support their rental business. 

There is talent and technology infrastructure in California today that cannot be beat. 

And preferably newer books, that have advice on using modern technology like RentReady app and such to make it easier and keep it organized.

The technology is available, but since these software companies make money by the unit.

Not only because of the safety, but because the list of available companies that insure knob & tube is tiny and because they are taking on the 1800's technology risk, they are likely going to charge you for it.The upgrade will likely cost a bit but your place will be more marketable and also, all in all, safer.  

@Alberto Nikodimov what systems/technology do you use to help you manage that many STRs?

Technology today makes it so easy to look at all the markets and find what you are looking for.