What is a fair way of splitting the ownership and/or division of profits (from both cash flow, and an eventual sale)??  

Good Luck and I will look up D&B however you should also know that the other major three credit reporting agencies such as Transunion, Equifax, etc. all have a Business Reporting Division that you can check into my thought is it probably has a very small cost. 

local lenders might do a portfolio loan, usually through their commercial divisions.

I got turned into the state of Nevada for just asking about a broker to handle some deals for me.. and got a letter from the State division of finance asking me for copies of files and how many deals I had broker or originated etc etc.. they pulled all my licensure etc...

I invite you to Google "Creating a LLC or S Corp in California," "Division of Corporations in California," or another phrase.

Who has experience with a tenant calling saying this card is on your rental door? It seems going into the conversation correctly might be important. If you have some experience here in Oregon I imagine it would be of ...

I just did a quite google search to find this PDF from NJ state's website, http://www.state.nj.us/dca/divisions/codes/publica...Section 46:8-50 states flood zone and notifying tenants.

@Joseph Cornwell the Division of Real Estate does claim purview over non-licensed folks involved in wholesaling.  

Yes, the results of the Radon Air testing does have to be reported to the State of Maine Department of Health and Human Services Radon Division.  

Also, regarding legal issues about wholesaling, I can point you to another BiggerPockets post pointing to a Blog by highly respected attorney Jeff Watson, who speaks with two members of the Ohio State Board of Commerce - Real Estate Division where the regulators clearly state what is and what isn't legal regarding Wholesaling. https://www.biggerpockets.com/forums/93/topics/193...Look at Marketing No Nos