The best buyer’s agent is not the one who sends the most listings. It is the one whose loyalty, judgment, attention, and economics are clearly aligned with yours.

That matters whether you are evaluating a Manhattan co-op, a Brooklyn townhouse, or a home in the Hamptons. A broker may influence what you offer, which risks you investigate, how you structure the deal, and whether you recognize a problem before it becomes an expensive one.

Before hiring anyone, ask questions that reveal how the relationship will actually work.

The Short Answer

Interview the brokerage, not merely the individual agent.

You should know whom the firm represents, who will personally handle your transaction, what analysis you will receive, how the broker negotiates, and how the brokerage’s economics align with yours.

Charm and responsiveness are welcome. Structure, judgment, and alignment matter more.

These five questions will tell you considerably more than a sales presentation.

1. Do you represent buyers only—or could your firm represent the seller too?

An agent may describe themselves as “your buyer’s agent” even when their brokerage also represents the seller.

That can create dual agency. New York permits dual agency with informed written consent, but the state warns that a dual agent cannot provide the full range of fiduciary duties to either side. Even when different agents at the same brokerage are designated for the buyer and seller, the brokerage remains in a dual-agency relationship.

This issue can arise in any New York transaction. In NYC, a large brokerage may represent numerous listings in the buildings and neighborhoods where you are searching. In the Hamptons, concentrated local inventory can make it particularly important to understand whether the firm marketing a property also hopes to represent you as its buyer.

Dual agency is not necessarily improper. It is, however, materially different from having a brokerage whose interests are entirely on the buyer’s side.

Ask the direct question: Could you or anyone at your brokerage represent the seller in my transaction?

2. Who will actually do the work?

Many buyers interview a senior broker and are later handed to a junior agent, assistant, or loosely coordinated team.

Ask who will identify and analyze properties, attend showings, prepare offers, negotiate, coordinate diligence, and remain responsible through closing.

In NYC, that may include analyzing co-op or condominium finances, reviewing comparable sales, coordinating inspections, and managing a board package. In the Hamptons, it may include evaluating a wider geographic market, coordinating inspectors and other specialists, and investigating property-specific issues involving condition, permits, zoning, flood exposure, septic systems, or contemplated renovations.

A large team is not automatically a problem. An unclear handoff is. You should know who has command of your transaction before it begins.

3. What analysis will I receive before making an offer?

“Comparable properties sold nearby” is a starting point, not an analysis.

For an NYC apartment, a strong buyer’s agent should examine the most relevant closed sales, current competition, pricing history, carrying costs, building finances, pending assessments, financing requirements, and property-specific risks. For a townhouse, the analysis may extend to condition, configuration, zoning, rental status, and renovation exposure.

A Hamptons property requires an equally disciplined but different inquiry. Relevant considerations may include lot and location differences, condition, permits and certificates, flood exposure, septic capacity, zoning constraints, renovation history, rental limitations, and the substantial variation between nearby villages and hamlets.

The broker does not replace your attorney, inspector, lender, engineer, or other specialists. The broker should identify the right questions, coordinate the information, and translate it into a defensible negotiating position.