Top Realtors and Real Estate Agents in Mountainside, NJ
Rankings based on verified MLS transaction data. Last updated May 2026. No pay-to-play.
Top Agent
Top 0.22%
in Mountainside, NJ
$166.7M
All-Time Sales
$470K - $1.8M
Price Range
5%
Negotiated Off List
Top Agent
(48)
Beth Sullivan
Coldwell Banker Westfield West
24 Years of experience
19+ Sales in the last 12 months
Top 0.43%
in Mountainside, NJ
$383M
All-Time Sales
$550K - $2.4M
Price Range
5%
Negotiated Off List
Top AgentTop 1.3%
in Mountainside, NJ
$161.9M
All-Time Sales
$460K - $1.5M
Price Range
4%
Negotiated Off List
Top Agent(11)
Amber Linsky
Prominent Properties Sotheby International Realty
13 Years of experience
22+ Sales in the last 12 months
Top 1.94%
in Mountainside, NJ
$141.1M
All-Time Sales
$530K - $2.4M
Price Range
7%
Negotiated Off List
Top AgentTop 2.16%
in Mountainside, NJ
$106.5M
All-Time Sales
$330K - $1.7M
Price Range
Top AgentTop 3.02%
in Mountainside, NJ
$300.1M
All-Time Sales
$260K - $89M
Price Range
Top Agent(192)
Andrea Lacerda
Berkshire Hathaway Home Services Fox & Roach Realtors
31 Years of experience
64+ Sales in the last 12 months
Top 3.24%
in Mountainside, NJ
$266.3M
All-Time Sales
$330K - $1.7M
Price Range
Top AgentTop 3.24%
in Mountainside, NJ
$116.8M
All-Time Sales
$330K - $3.3M
Price Range
Top AgentTop 3.24%
in Mountainside, NJ
$72M
All-Time Sales
$380K - $1.6M
Price Range
Top AgentReviews not yet available
Donald Lamastra
ERA Suburb Realty
49 Years of experience
16+ Sales in the last 12 months
Top 4.97%
in Mountainside, NJ
$108.1M
All-Time Sales
$380K - $1.7M
Price Range
Top Agent$238.6M
All-Time Sales
$390K - $2.6M
Price Range
4%
Negotiated Off List
Top Agent(177)
Claudia Marrone
Keller Williams Towne Square
23 Years of experience
21+ Sales in the last 12 months
$216.1M
All-Time Sales
$320K - $2.2M
Price Range
4%
Negotiated Off List
Top Agent$89.4M
All-Time Sales
$340K - $1.3M
Price Range
10%
Negotiated Off List
Top Agent$45.3M
All-Time Sales
$240K - $900K
Price Range
152
Total Number Of Homes Sold
Top Agent$58M
All-Time Sales
$430K - $2.6M
Price Range
107
Total Number Of Homes Sold
Mountainside Housing Market Trends
Median Sale Price
$1,395,000
+19.13% year-over-yearMedian Days on Market
13
-12 days year-over-yearSale-to-List Price
107.11%
-6.88% year-over-yearHomes Sold Above List Price
71.4%
-16.1% year-over-yearOff the Market in 2 Weeks
33.3%
-16.7% year-over-yearListings With Price Drops
12.5%
+4.2% year-over-yearMonths of Supply
1.1
Realtors in Mountainside
463
Verified MLS market data through May 2026.
When Is the Best Time to Sell a House in Mountainside?
Based on the last 24 months of verified MLS market data, homes in Mountainside sell fastest and closest to asking when they go under contract in June. To hit that window, plan to list around June.
Median days on market by month (shorter is faster)
June
Best month to sell
12 days
Typical time on market
111.7%
Of asking price
Seasonal averages from the last 24 months of Mountainside, NJ sales. Individual results vary with price, condition, and how the broader market moves. A local agent can pinpoint the right timing for your home.
How We Rank Mountainside Real Estate Agents
Our rankings are built from verified MLS transaction data, not advertising spend. For every agent we analyze more than fifteen performance signals, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results (how far above or below list price an agent's clients actually close), price-point fit, and verified reviews. The agents shown first are those whose verified results put them at the top of the Mountainside market today.
Agents cannot pay for placement in these rankings. The underlying data refreshes as new closed transactions are reported, so rankings shift with real market performance. Learn how we rank agents.
Rankings reviewed by Kevin Stuteville, Licensed Florida Real Estate Broker (License BK3068131), Founder of EffectiveAgents.
Data last updated: May 2026
Mountainside Real Estate Agent FAQs
How were these Mountainside real estate agents ranked?
Rankings are built from verified MLS transaction data. We analyze more than fifteen performance signals for every agent, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results, price-point fit, and verified reviews. Agents cannot pay for placement.
How many real estate agents are in Mountainside?
Our data covers 463 real estate agents serving the Mountainside area. The count represents agents with transaction activity recorded in our Mountainside market data, not simply everyone holding a license.
What does the median sale price in Mountainside mean for sellers?
Mountainside's median sale price is $1,395,000 as of May 2026. Half of recent sales closed above that figure and half below. It is a useful baseline for understanding the market, but an experienced local agent will price your home against comparable recent sales in your neighborhood, not the citywide median.
Does it cost anything to use EffectiveAgents?
No. EffectiveAgents is free for home buyers and sellers, with no obligation to work with any agent we match you with.
Do agents pay to be ranked or featured?
No. Agents cannot pay for placement anywhere in these rankings. Positions are earned from verified transaction performance only.
What commission do Mountainside realtors charge?
Commissions are negotiable and vary by agent, service level, and transaction. There is no set rate, and recent industry changes have made commission structures more flexible than ever. Discuss the structure directly with your agent before signing a listing or buyer agreement.
Should I use a local Mountainside agent or a national brand?
The individual agent matters more than the brand on the sign. Offices within the same national franchise vary widely in performance, and the agent you hire, not the logo, prices your home, negotiates your contract, and manages your closing. A strong local agent brings firsthand knowledge of Mountainside neighborhoods, pricing patterns, and buyer activity. Compare agents on verified local results such as recent sales, days on market, and negotiation outcomes rather than name recognition.
What questions should I ask a Mountainside realtor before hiring them?
Ask how many homes they have closed in Mountainside in the past year, what their average sale-to-list ratio is, and how much of their business is in your neighborhood and price range. Ask how they will market your home or find you listings, and how often they will communicate. Strong agents answer with specifics. Verified transaction data is the fastest way to confirm what you hear.
Top Realtors by Zip Code in Mountainside, NJ
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