My question is what value would I offer to a broker if I was simply wholesaling and why would any broker want my license on their wall?

I would present all of the facts to an attorney then wait for their advice.I hear Massachusetts is pretty tenant friendly so I do not know if the following will apply but in most areas the tenant cannot simply withhold the rent due to repairs.

I question if my HVAC person simply has more work now and can charge a premium. 

We can definitely connect and share ideas, advice, or just simply make money together.

I certainly still have the option to back out.I'm tempted to back out simply because I don't like being manipulated and lied to.The deal is not a killer of a win.

Should purse a consulting type of business or can I simply establish a property management company with certain limitations since I do not plan on acting as a real estate broker?

My other strategy is simply go off of the MLS and then I work with my RE agent who understands investment properties too, to look up comps for sales and rent.

Another option is for you to make the payment to the note holder, you could simply be a tenant and do that.A bigger issue is changing the insured on the insurance policy, this can be arranged with the agent to show you as a loss payee or an additional insured.

I simply do not go look at houses unless I've got them under contract or have told the seller my general number and am pretty certain I'm going to buy it.I don't do a lot of direct to seller marketing anymore, but when I do I'm more trying to weed out the non motivated people than sell someone on me when I talk to them. 

I suggest you think along the lines of forgiving debt over a period of time subject to the buyer keeping the loan in place, an early payoff simply reverts back to the original amortized loan amount.