 NEW YORK--BUSINESS WIRE--Blackstone Mortgage Trust, Inc. NYSE: BXMT announced today that Nnenna Lynch has been appointed to its Board of Directors, effective immediately. Ms. Lynch brings a diverse array of knowledge and experience in real estate investment and development to the BXMT board. She is Founder CEO of Xylem Projects, a mission-driven real estate firm focused on preserving workforce housing and developing mixed-use projects, and is a seasoned executive in urban redevelopmen 