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 record you can check. Mia Kaiser is a Licensed Real Estate Salesperson with Signature Premier Properties. Below is what her transaction record actually shows, with the basis for each figure beside it.
What the record shows
- 19 listings sold Homes listed and sold, 2022 to 2026. Each has a page on this site.
- 15 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.
- $21,072,902 in closed volume Sum of recorded closing prices across all 34 closings, both sides.
- 26 days on market, median Median across sales with a recorded days-on-market value. Half sold faster.
- 105% of asking price, average Closing price against list price, averaged over 19 sales where both are recorded.
Figures from Mia Kaiser's own recorded transactions as of September 2026, through Signature Premier Properties. Every sale behind these figures is published on this site with its address, price and closing date.
“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. 19 listings sold, 15 buyers represented, $21,072,902 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.
- 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. 105% of asking on average, across 19 sales.
- Current activity
- Whether the agent is working now, not five years ago. Closings recorded in every year from 2022 to 2026.
Two things this page deliberately does not claim: a ranking against other agents, and a percentile. This site carries Mia’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.
Questions people actually ask
- How many homes has Mia Kaiser sold on Long Island?
- 19 homes listed and sold between 2022 and 2026, each with a page on this site showing its address, price and closing date, plus 15 purchases closed for buyers, where the listing belonged to another brokerage. $21,072,902 in closing prices across both.
- What brokerage does Mia Kaiser work with?
- Signature Premier Properties, a licensed real estate broker at 7 West Main Street, Smithtown, NY 11787.
- How long do her listings take to sell?
- The median is 26 days on market across the recorded 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 Mia 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.