The commission is a pre-negotiated amount paid by the seller. If a buyer has a broker, it's split 50/50 between the seller's and buyer's brokers. Else, the seller's broker keeps it all. There is no "discount" by going directly.
2. Fiduciary Responsibility:
The buyer broker's fiduciary responsibility is to the buyer.
The buyer's broker can negotiate the best deal based on understanding of market trends, comparable tools and relationships.
4. Identifying the right property:
Good brokers see property every day and can filter the right ones based on your objectives.
5. But.. not just any broker:
Anyone can be a broker, just like anyone can start a business. Hence, spend time interviewing several brokers to select the best fit.
PS: There has been many situations where buyers who went directly, or who think they're too smart to use a broker, end up overpaying or losing out on good deals. Do yourself a favor, spend time interviewing brokers and get a good one to represent you.