NYS Housing and Anti-Discrimination Notice
Long Island
Who is the best real estate agent on Long Island?
There is no single best agent on Long Island, and any page telling you otherwise is selling something. What there is, is a sales history you can check. Danielle Sandella and Kim Fontanez are Licensed Real Estate Salespersons with Signature Premier Properties, working mainly in Smithtown. Below is what their sales history actually shows, with the basis for each figure beside it.
What the sales history shows
- 30 listings sold Homes listed and sold, 2013 to 2026. Each has a page on this site.
- 26 buyers represented Purchases closed for buyers. These listings belonged to other brokerages, so they are counted here and are not shown as listings anywhere on this site.
- $27,497,138 in closed volume Sum of recorded closing prices across all 56 closings, both sides.
- 45 days on market, median Median across sales with a recorded days-on-market value. Half sold faster.
- 96.2% of asking price, average Closing price against list price, averaged over 30 sales where both are recorded.
Figures from Danielle Sandella and Kim Fontanez's own recorded transactions as of November 2026, through Signature Premier Properties.
“Best” means different things
It is worth being specific about this, because the answer changes depending on what you are trying to do. Someone selling a house that has already sat on the market wants something different from someone buying their first.
- Volume
- How much an agent actually closes. It is the easiest thing to verify and the easiest to misread: a high number across a whole county says less about your street than a smaller number concentrated in it. 30 listings sold, 26 buyers represented, $27,497,138 in total.
- Local depth
- Repeat sales in the same few towns. This is the one that tends to matter most and gets advertised least, because it is a smaller number than a county-wide total. 1 towns with three or more closed sales.
- Pricing accuracy
- Whether houses sell near what they were listed at. Consistently far above asking can mean strong demand, and it can also mean the list price was low. 96.2% of asking on average, across 30 sales.
- Current activity
- Whether the agent is working now, not five years ago. Closings in every year from 2013 to 2026.
Two things this page deliberately does not claim: a ranking against other agents, and a percentile. This site carries Danielle and Kim’s own transactions and not the full market compilation, so a percentile calculated here would be a guess. If a ranking matters to you, the third-party sites that publish them are the place to check, and you should check more than one.
Towns with a closed sale behind them
Ordered by how many. A town page on this site is built from these sales, which is why there is not one for every place on Long Island.
Questions people actually ask
- How many homes have Danielle Sandella and Kim Fontanez sold on Long Island?
- 30 homes listed and sold between 2013 and 2026, each with a page on this site showing its address, price and closing date, plus 26 purchases closed for buyers, where the listing belonged to another brokerage. $27,497,138 in closing prices across both.
- Which towns does Danielle Sandella and Kim Fontanez actually work in?
- Most often Smithtown. The full list of towns with a closed sale behind it is on this site, and each town page is built from those sales rather than from a general description of the area.
- What brokerage does Danielle Sandella and Kim Fontanez work with?
- Signature Premier Properties, a licensed real estate broker at 7 West Main Street, Smithtown, NY 11787.
- How long do their listings take to sell?
- The median is 45 days on market across those sales, which means half sold faster than that. Speed depends on the house and the price it is listed at, and a median is the ordinary case rather than a promise about any particular listing.
Ask Danielle and Kim directly
The most useful thing is usually a conversation about the specific house and the specific street, which is where an average stops being much help.
