If you want a broker in your corner alone, consider using a buyer's broker. Instead of working for the seller, they work exclusively for you, the buyer. The broker fees are calculated on a percentage of the transaction, which means that the hiring of a broker representing you need not cost you anything more. The total cost is shared between the seller's listing broker and your buyer's broker.
Things to consider:
Investments are not a deposit or other obligation of, or guaranteed by, the bank, are not FDIC insured, not insured by any federal government agency, and are subject to investment risks, including possible loss of principal.