To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

His information is faulty, his approach is to "overleverage", "zero down" and in my opinion the information he leaves out is either lack of experience on his part or intentional deception, neither of which I am willing to be associated with.He leaves out very important information, like what my buddy recently posted at Using Subject To, to Get "Free" Properties - A Quick Guidelinehttps://www.biggerpockets.com/forums/311/topics/1188416-usin...We teach even the downside of Subject To and how to avoid the pitfalls.

However, The requirement for single adu seems seldom enforced on duplex if it stays below 5 units. 

I don't foresee Texas implementing a similar law, but I'd be interested to know how this change has affected others.Side note: It's not the Section 8 tenants that I'm avoiding, it's the government bureaucracy that comes with it.I believe the majority of the US population lives in states with the same law.How do we navigate it in those states?

A partnership requires three things to be successful - Experience, Capital and Time.It looks like you have the capital and experience but maybe not the time.I have my doubts about this working if you have a friend who has weak credit and a limited cash flow.

What criteria or requirements must be met for this to happen, and what’s the process I need to follow to ensure compliance with the law?

With no proof required.  

The insurance companies might require this. 

Another thing to add is the regulations, HOAs and Cities are imposing a lot of regulation on short-term rentals or rent by a room, I have seen some HOAs regulate the amount of people authorized to rent the property too.It requires to do a lot of due dilligence to begin with mainly in such big house. 

I had a client who actually decided to pursue converting the house to a boarding house to avoid any problems in the future.