Are commission splits between agents at the discretion of the seller's agent?
Hi guys, please forgive my naivete here, as I have exactly zero experience in this arena.

We are listing our business through a realtor we've signed a year listing with at a certain commission rate.  The most lively offer we have at present is an entity that has their own realty agency, which I have to imagine is fairly common in a commercial sale.  That's just me making noise out of my face hole, though.  

We're starting to get the impression our own realtor is putting the brakes on the deal for lack of wanting to share his commission with their agent, as they require their own realtor who likely doesn't work for free.

My question is has to do with whether or not our realtor is within his rights to halt forward progress to save 100% of the commission for himself, or if multi-agent deals are commonplace and we, as the buyers, are able to force the issue.  Any answers you think are additional or helpful are much appreciated.

Thanks.
[{"id": "ch1wnr2", "text": "Florida Broker here. My opinion. If your agent is not sharing commission fees, he is not really working in your best interest, he is just being greedy. I would have a talk with him and tell him to start sharing with cooperating brokers. Let him know you will be a much tougher negotiator when he brings his own buyer and that his fee will have to be part of that negotiation. So he may be better off to pay a cooperating broker fee and move on.", "replies": [{"id": "ch1xcnq", "text": "Greedy I can agree with.  But is he in the right, contractually? And what do you mean by ''brings his own buyer?''  I assumed he only listed the sale ad and vetted prospective buyers from the public.  Again, massive apologies for sounding retarded.", "replies": [{"id": "ch20zx3", "text": "Your broker has a fiduciary duty to you. he has to act in your best interest even if it means splitting the fee to make a sale. you should get a lawyer involved.", "replies": [{"id": "ch2ww8z", "text": "This right here", "replies": [], "depth": 4}], "depth": 3}, {"id": "ch2xuej", "text": "Sometimes AAA corporate tenants cobroke their own deal with the agent and request 2/3 of the commission to themselves.  Frequently they are told to go either go 50/50 or go fly a kite.", "replies": [], "depth": 3}], "depth": 2}], "depth": 1}, {"id": "ch2dcir", "text": "Depends on what your listing agreement says. Your broker is legally inclined to bring any offer received to you regardless of a second broker. If they don't, they're in breach of contract and could potentially lose their license. That is a potential way out of your listing agreement. A year is a very long term for an agreement so you're in a tough spot. Maybe mention that if it isn't sold/leased in the next 3 months you'll need to hold on to it to force the issue. Good luck!", "replies": [], "depth": 1}]