In this discussion, I am NOT discussing the income and expenses for the properties (whether it's a good idea to keep them or how I ran the numbers), but only the taxes.Do accountants regularly cover more than their own state's laws and regulations?

Doesn't matterNow if I want my 401(k) to invest in something there are strict rules.

This is strictly to avoid the risk of being sued over missing some technicality on the lease or in the management of the funds.

We used to have over a 30% eviction rate mainly because we were putting the wrong people in the properties and not having the right policies and procedures in place to handle those clients.Once we started being strict on who we put in our properties we went down to a less then 2% eviction rate and one of the highest rated and reviewed property management companies on Google for Houston market, this is by both Tenants as well as owners. 

It is strictly curiosity.

Since I am not a home owner I am taking the money I have, which is 6 k, and moving into a duplex to get the other half rented out and save more money that way and hopefully within the next year or so I will be able to purchase another property strictly as a rental and keep doing that.

You may want to consider complying with the regulations.

Another approach we're exploring is tending toward item 2 above and either selling off part of future deal flow (assignments) or strictly acting as the financier for equity and taking a promote with other operators instead.  

It sounds like you were looking for strictly MFH????

Big banks have strict criteria for their loans.