*But*, the insurance company will pay the IRA LLC owner a 15% commission on the insurance policy!!!  

So let’s say you are an affiliate for a company and say the company wants you to sell there idk utility or somthing and gives you a 10 percent commission that’s residual for the life of the customer, if you owned like 100 or so units I know it may not add a TON to the bottom line returns but would it be illegal to sell it to them?

If a tenant refers another renter to me, I give them a commission

The REA is looking for their commission. 

If a homeowner lists their rental on Zillow and offers to pay a commission you might get a call or two with agents who want to bring tenants by.

so most money for an Actual seller is still traditional MLS and negotiate commission.

* a big commission check. 

I am very interested in checking them out, since they charge only a small monthly fee plus a small fee per transaction (no commission split) and they claim to be investor friendly. 

Sometimes higher, sometimes lower, sometimes about the same (a bit higher to pay realtor commissions would be expected).

Get licensed so you can find deals and make your own commissions.2. #1 plus jump in with both feet and become a good agent and make one heck of a good living3. #1 plus just practice being an agent passively.