Buyer's agents are licensed real estate professionals that specialize in searching, evaluating and negotiating the purchase of property on behalf of the buyer.
They work for the buyer, not the seller. So, they will have the interests of the buyer as their only focus.
The purpose of a Buyer's Agent is to help the buyer find the right property. One that meets the needs of the buyer and his/her family. They will guide the buyer through the home buying process, help with the negotiations, secure the best deal, gather market trends, assess the inspection process and protect the buyer's interests, basically, help every step of the way.
It does not cost anything to the buyer to have an agent representing them. The fees to the buyer's agent / broker are paid by the seller of the property.
Usually, the sales commission is split between the seller's agent and buyer's agent.
I often work with seniors that are either downsizing or moving out of state to warmer climates - e.g., Florida, North Carolina, Virginia. Also, work a lot with families of the elderly that need home care or are moving out to a ellderly care facility.
In addition to the home inspector, a buyer's agent can also help detect issues with the property than can go un-noticed. For example, some foundation cracks can be hidden or not noticable. An experienced agent can find hidden issues like this with a property.