With financial partners in 2014, founder Isaiah “Ike” Cottle made his first personal land investment and rewarded his partners with over a 400% total investment return on the distressed asset with its sale three years later. In 2014, he received his Florida Brokers license. In 2016, he established a brokerage firm to hang his brokers license and started to provide professional development services to a national luxury apartment developer.

Having been involved in over $100 million dollars worth of real estate transactions as a broker and the development of over 1,300 affordable and 3,700 luxury residential units, Ike decided to re-brand his brokerage firm as Green Slate Land & Development in 2018. As President and CEO of GSL, Ike added a talented planner and development consultant Adilia Richemond to the team in 2018 and continues to provide development services and consulting to home builders, master developers, affordable and luxury residential developers, commercial development firms, and family owned investment companies.