Community Management The Potomac Greens Homeowners Association (PGHOA) is managed by Sentry Management. The Sentry liaison to Potomac Greens is Christie Beruete, who will be able to help you with most neighborhood matters directly or connect you with another appropriate contact: Potomac Greens HOA c/o Sentry Management 4401 Ford Avenue, Suite 1150 Alexandria, VA 22302 Attn: Christie Beruete, Community Manager Phone 703-642-3246 ext. 56511 Email: