About Katie

I taught fourth grade for six years before I ever showed a house. Both jobs turn out to be the same job: explain clearly, be patient, and never let anyone feel stupid for asking.

Katie Brennan on a front porch in morning light

From the classroom to the closing table

I grew up in Massapequa, bought my first house in Seaford, and sold it the hard way: wrong agent, wrong price, wrong advice. That experience bothered me enough to get licensed in 2014. Eleven years later I have closed 214 sales, almost all of them within fifteen minutes of my own front door.

I still work like a teacher. You will see the comps I used, the flood maps I checked, and the math behind every number I say out loud. If the honest answer is “do not sell yet,” that is the answer you get.

The agency behind me

The Jacko & Shore Realty storefront office on Deer Park Avenue in Babylon

I am a Licensed Associate Real Estate Broker at Jacko & Shore Realty, founded in 2012 by Jack “Jacko” Caruso and Dana Shore. It is a mid-size Long Island brokerage with a real office on each shore: Babylon for the South Shore, Huntington for the North. Twenty-four agents, one standard, and a broker-owner who still walks basements.

What that means for you: I am the single person accountable for your sale, with a full back office behind me for contracts, marketing, and the dozen small emergencies every deal produces.

The numbers

214Homes sold since 2014
142MTotal sales volume, $
19Average days on market
101.8%Average list to sale

Katie told us our house was worth less than another agent promised, then sold it for more than either of them said. In eight days.

The sellers at 27 Bayview Ave, Massapequa

Talk to me

Text is fastest. Tell me your street and what you are weighing, and I will tell you what I would do if it were my house.


Text Katie (516) 555-0142