Louise Costello at Long & Foster Real Estate in Baltimore: Residential Agent for Federal Hill and Inner Harbor Buyers

Louise Costello is a residential real estate agent with Long & Foster's Baltimore office, serving buyers and sellers primarily in Federal Hill, Canton, Fells Point, and Inner Harbor neighborhoods. She operates as an individual agent within Maryland's largest independent real estate brokerage by office count, which means her commission structure and resources reflect Long & Foster's standardized approach while her local market knowledge and client base are her own competitive advantage.

How real estate agents in Baltimore are paid

Agents in Maryland, including Costello, earn commission only when a sale closes. The commission comes from the seller's proceeds and is typically split between the seller's agent and the buyer's agent, each taking roughly 2.5 to 3 percent of the final sale price, though this percentage is negotiable and varies by transaction. When you work with a buyer's agent like Costello, you pay nothing directly; the seller's agent's portion funds her compensation. This structure means Costello's interests align with getting you under contract, but at market rate, not inflating offers unnecessarily. For sellers listing with Costello as the listing agent, Long & Foster's standard commission is usually 5.5 percent total (split between listing and buyer's agents), but this is negotiable depending on local conditions, property type, and market timing.

What to expect from a buyer's agent versus a listing agent

If you hire Costello to represent you as a buyer in Baltimore, she handles showings, comparative market analysis for offer strategy, negotiation, inspection coordination, and closing logistics. Her fiduciary duty is to you as the client, not the seller. She cannot show you properties exclusively; all MLS listings are visible to any agent, but she can advise on neighborhoods, builder reputation, and market timing. A listing agent (who may be Costello or someone else) handles marketing, open houses, fielding buyer's agents' inquiries, and accepting offers on behalf of the seller.

The critical difference: a buyer's agent works for you to pay less and secure favorable terms; a listing agent works for the seller to maximize price and close quickly. You should not use the same agent for both sides of a transaction.

Evaluating an agent in the Baltimore market

Costello's credibility rests on three verifiable factors. First, her tenure and transaction volume: how many homes has she closed in Federal Hill and Canton in the past two years, and what was the average days-on-market? This data is public in the MLS and tax records. Second, her familiarity with Baltimore's neighborhood-specific risks: she should explain flood zones (Federal Hill and Fells Point have FEMA-mapped areas), lead paint disclosure requirements (mandatory in Baltimore), and which blocks command premiums based on walkability to the Canton waterfront or Inner Harbor tourist amenities. Third, her willingness to discuss market conditions honestly. If she tells every buyer that "now is the time to jump in," that's a sales tactic, not analysis. A reliable agent will name when conditions favor buyers (longer inventory, price negotiation room) versus sellers (low inventory, multiple offers).

How Costello compares to other Baltimore residential agents

Long & Foster competes with Coldwell Banker, Keller Williams, and independent boutique firms like William Raveis and Compass. Long & Foster's advantage is the large agent network, meaning Costello can tap internal referrals for relocation clients and has consistent broker support. The cost to you is the same regardless of which brokerage your agent works for. Coldwell Banker and Keller Williams offer similar commission splits and buyer representation. Independent boutique firms sometimes take lower commission but have smaller networks. Compass attracts luxury agents but focuses on properties above $1 million. For neighborhoods like Federal Hill and Canton, where the median sale price ranges from $350,000 to $500,000, any of these options will have active agents. Choose based on your agent's personal track record and market knowledge, not brokerage name.

Who should work with a buyer's agent, and who should not

Use a buyer's agent like Costello if you are relocating to Baltimore, unfamiliar with neighborhoods, or buying your first home in the city. She will save time and negotiating mistakes. Do not hire an agent if you are browsing casually; real agent relationships assume serious intent to buy within weeks or a few months. If you are selling and considering a flat-fee MLS listing (roughly $300 to $500) to handle showings yourself, understand that you forgo agent-to-agent communication networks, meaning some buyer's agents may steer clients toward properties listed with traditional full-service agents instead.

First steps with an agent

When you contact Costello or any agent, expect an initial conversation about your timeline, budget, and neighborhood preferences. She will then send you a list of active listings matching your criteria, arrange showings, and discuss the Baltimore homebuying process, which includes lead paint disclosures, title search, inspection, appraisal, and mortgage contingencies (standard in Maryland). Bring a preapproval letter from a lender; this signals serious intent and strengthens your offer if multiple buyers compete.

Hours and contact

Long & Foster's Baltimore office maintains standard business hours Monday through Friday, 9 a.m. to 5 p.m., though agents like Costello schedule showings evenings and weekends by appointment. Parking in Federal Hill is street-based and competitive; arrange meetings at the property itself rather than an office.

Louise Costello represents a standard model for Baltimore residential real estate: individual agent expertise within a large brokerage structure. Your choice of her or a competitor should rest on her specific transaction history in your target neighborhoods and her candor about market conditions.