Courtesy of Lauren Melnick
Etiquette experts share the 6 times you should write a thank-you note — and the 2 times you can skip
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Carter Reum co-founded M13 in 2016 with his older brother, Courtney. The early-stage venture capital firm now has $1.3 billion of assets under management with over 40 staff working in offices in New York, Santa Monica, and San Francisco.



