I would feel this would be a common topic that is covered from a local "guru" (it is here in Texas).  

Yes, it is common to ask for leases, ledgers, full applications packages during due diligence, should be part of your PA too (for next time).If you buy it, you can start from square one with applications, qualifying and new leases and you will be set. 

In mathematical statistics, such advice is considered the "Survivorship Bias" logical error.Wikipedia says: "Survivorship Bias is the logical error of concentrating on the people or things that made it past some selection process and overlooking those that did not, typically because of their lack of visibility.

I’ve not had any FHA loans not go through because of a non conforming property because this is actually quite common with older neighborhoods.Example, I had 12 lots together and all were 40’ width.

The laws are different for mobile homes versus single family.You want to first read your lease, what notice is required, and then secondly know what laws apply depending on the property type.The most commonly utilized Arizona lease by default requires a 30-day notice prior to the renewal date, which is typically on the 1st of the month.

Most states have a Tenancy in Common or similar provision. 

It depends on how the title will be held.There are two ways that ownership of title can be heldTenants in Common(should have a TIC agreement)Through an entity(LLC, LP, Corp, etc)

@Lindsay GittensVery common, I’m planning on doing this, try to work with people with something to lose like credibility if they screw you over or possibly partner with someone boots on the ground.

there's other techonologies that allow you to build without traditional stick build methods but not commonly adopted yet.

You need to do something to expand the people you know, books keep your spirit alive but people bring your life in alignment with your spirit. people like @Adam Tafel and @John Zheng have helped me change the trajectory of my life and I was able to connect with John through common readings.