I was very impressed and extremely intrigued.

.- Many of these HCOL areas also have strict limitations on AirBnB or short-term rentals... that do not apply to owner-occupants - thus allowing for extreme cashflow potential for house-hackers.

I have been extremely impressed with his teachings have found myself measuring other training courses and products against him.So far the only strike that I have against him is that I don't agree on his politics. 

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.

Margins on the market today are extremely tight.

Even the most expensive property managers are EXTREMELY cost effective if you really think about it!

It is extremely odd the previous companies did not ask for that if they are collecting rent for you and issuing you disbursements.  

What I noticed so far is extremely high property taxes. 

Another example of this is Newark, extremely strict laws making land lording a second job.When finding the right area to invest, towns with more lenient land lording laws and proximity to public transportation tend to be a receipt for success.  

I'm wondering what people's best experiences with low flow are, reliability, durability, best brands, savings seen, and if I should avoid the extreme low gpf toilets for water savings (0.6-0.8 gpf).