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About John

John Castle is a top performing investment real estate advisor with Keller Williams in Ottawa, Ontario, Canada

John specializes in income properties and development land.

He has provided expert comment to Forbes, The Ottawa Citizen, Real Estate Business Magazine, and other publications.

Expert Opinion Provided To​

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Past Comments

A Gender Gap You May Have Never Heard About

How To Negotiate an Offer on a Home in the Age of Coronavirus

Doing Right By Your Customers in a Crisis

Real Estate Business Institute Magazine cover may-June issue

Why Teams Aren’t the Answer for These Agents - May/June Issue (PDF)

AIRBNB CRACKDOWN: Winners and losers as rules set to change

Winners vs. losers: Ottawa's Airbnb crackdown

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