@Josh Randall thanks for asking, I should get a better idea over the coming month, your point about experience, one of them has been in the business for close to 20 yrs, and did very well until the music stopped, the euphoria of the crazy returns got to many, and the game changed from running properties well to flipping properties fast, Asset management wasn't given the attention it deserves because you were in and out before it mattered.

Its $2k to start and was wondering if it is worth for them to build the Paydex and build up my business credit. 

The best contacts are those who also value growing their networks and who are clear on their business needs (e.g., funding, partnerships, access to deals, vendor recommendations, etc.).

More standard income variations are: asset depletion (using reserve distributions as the proposed income) or average personal or business bank statement deposits over a 12-24-36 month period. 

I own a hard money business and we never ask for payments prior to closing on the loan.

I have customers come into my business and pay by credit card.  

Contracting is a business , the salesman is there to sell a roof to the customer for the most he can get .

My W2 income is >$550k/year, if I build an RV/Boat storage facility, will my storage business expenses/losses be able to reduce my W2 taxable income? 

One lender may require the cash out be used for business purpose exclusively, another may not have the same guidelines. 

Yes, all of the above, some people will continue to pay for a full service agent, some people will pay for a discount, some people will forgo agents all together, I think we will see alot more variation then we currently see, but just like any other business there will be tiers, Ritz, Marriott, Courtyard, Fairfield inn but for agents.