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Cornerstone Real Estate Services, LLC.

Your Long Island Real Estate experts.

Cornerstone Real Estate Services LLC welcomes you to our new and improved comprehensive real estate website. No other site provides more detailed market information than you’ll find here. We are an equal opportunity firm and look forward to serving you. 

                                            New York State Housing and Anti-Discrimination Notice (Fair Housing Notice)

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Cornerstone Real Estate Services, LLC.'s Numbers

Proven Performance

12+

Years In Real Estate

112+

5 Star Reviews

$930+

Million Dollars In Sales

838+

No. Of Units Sold

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Smithtown, NY

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