Questions about agent commissions

[Josephine Wilson]

1) If a real estate agent buys a listed property for themselves, do they get the buyer's agent commission? Do they have to split the commission with their broker?

2) If a person who is not a real estate agent buys a listed property without a buyer's agent, can they decline to have the listing agent represent them and instead represent themselves? What happens to the buyer's agent commission?

3) If a property has been listed for some time on the MLS, can a person who is not an agent contact the owner directly and offer to buy the property without agents? Would the seller be able to get out of their contract with the listing agent?