John & Felicia Anna

John W. Anna, Jr.
MD Licensed Tree Expert #769c
I.S.A. Certified Arborist #MA-4082
EHAP Certified Arborist
ISA Qualified Tree Risk Assessor

John & Felicia started Adirondack Tree Experts in June 1994 with one old truck and 2 old chain saws. Today, Adirondack is one of the largest tree care and removal companies in the Washington Metropolitan Area. In addition to its size, Adirondack is also the top rated/ranked tree company in the Metro Area and is also one of only eleven companies in the State to be accredited by the Tree Care Industry Association (TCIA). Accreditation is the Industry’s highest credential. John and Felicia are both Maryland licensed tree experts and John is also an ISA Certified Arborist, a Certified Tree Care Safety Professional, an EHAP Certified Arborist and an ISA Qualified Tree Risk Assessor. John also serves as the current President of the Maryland Society of Licensed Tree Experts and served his country as a Sergeant in the United States Marine Corps. Having been a pilot since 1996, John enjoys flying both fixed wing and rotary wing aircraft in his free time.

William L. Callahan, Esq.

Executive Vice President
General Counsel
Md. Licensed Tree Expert #1208
I.S.A Certified Arborist #MA4988

Bill has been on board since 2004 and is our Executive Vice President and corporate Counsel for Adirondack Tree Experts. In addition to his legal responsibilities, he provides oversight, guidance, and direction to Adirondack’s management. Bill has more than twenty five years of legal and managerial experience. He is admitted to practice before The United States Supreme Court, The United States Court of Appeals for the Fourth Circuit, The United States District Court for the District of Maryland and all State of Maryland Courts and is legal counsel to the Maryland Society of Licensed Tree Experts. In previous roles, Bill was a private practice attorney in Maryland. He attended the University of Maryland, where he received his BA with honors and Washington & Lee University School of Law, where he earned his JD.

Shawn Harris

Government & Municipal Contracting Manager
MD Licensed Tree Expert #1204
ISA Certified Arborist #MA-5051A
TCIA EHAP Arborist

Shawn is John & Felicia’s eldest son and currently serves as our coordinator for Government & Municipal Contracting. When we started the business in 1994 Shawn was there helping out. In the world of Arboriculture, there is nothing that Shawn is not capable of and he is considered one of the most qualified Arborists in our region.

Jamie Harris

Office Manager
MD Licensed Tree Expert #1205

Jamie has been with us since 2004 and oversees all matters pertaining to the internal operations of the administrative side of Adirondack as our Office Manager. Jamie is John & Felicia’s eldest daughter.

Cory Anna

Operations Manager
MD Licensed Tree Expert #1873
ISA Certified Arborist MA-6340A
Certified Crane Operator #CCO 2112213947
EHAP Certified Arborist

Cory has been with us full-time since 2010 and began his term here at Adirondack as a Junior Groundsman. Being John and Felicia’s youngest son, Cory has been around the business all of his life. Currently, Cory oversees all Operations at Adirondack. Cory, like his dad, served in the United States Marine Corps.

Kara Anna

Advertising & Marketing Manager

Kara is John & Felicia’s youngest daughter and has been in the family business her entire life. Currently, Kara handles all of our advertising and marketing as well as office administration duties.

Vincent Chillemi

Sales Manager/Estimator
MD Licensed Tree Expert #1210
ISA Certified Arborist #MA-4983
ISA Qualified Tree Risk Assessor
TCIA Certified Tree Care Professional #1047
EHAP Certified Arborist

Vinny has been with us since 2005 and currently serves as our Head of Sales. Starting out as a Junior Groundsman, Vinny quickly became a Foreman and then our Senior Foreman before being promoted to his current position. When we encounter a very dangerous or intricately delicate removal, we still call on Vinny to lead the crew.

Nathanial Pollack

Production Manager
TCIA EHAP Certified Arborist
MD Licensed Tree Expert #1209

Nate has been with us since 2004 and is directly responsible for the day to day production at Adirondack. Nate has an intense work ethic and a desire to get the job done in the safest, most effective manner. As a U.S. Army Veteran, Nate exudes the discipline that allows us to function at a superior level.

Brittney Richardson

IT Director

Brittney has been with us since 2016 and currently serves as our IT Director. A graduate of Salisbury State University, Brittney earned her B.S. with Honors in Earth Science and Geography. In addition to her IT duties, Brittney also helps out with customer service and scheduling.

Andrew Beall

Crane Operator
Maryland Licensed Tree Expert #1864
EHAP Certified Arborist
Certified Crane Operator #MCO 13-0125-215

Andy has been with us since 2009 and is in charge of Crane Operations here at Adirondack. Starting out as a groundsman, Andy has moved up the proverbial ladder where he transitioned to crane operations in 2012. If you have a tree that requires the use of our crane, look for Andy to be at the controls.

Dan Miller

TCIA EHAP Certified Arborist
MD Licensed Tree Expert #1207
I.S.A. Certified Arborist #MA-5052

Dan came on board with us in 2003 and is part of our Estimating Team. Having been in the tree care industry all of his adult life, there probably does not exist a tree related scenario that Dan has not seen. As a younger man, Dan spent most of his career as a climber and foreman.

Virginia “Ginny” Keller


Ginny has been with us since 2005 and serves as our Accounts Payable and Accounts Receivable Clerk. In addition to these duties, Ginny serves full time as Felicia’s Mom, John’s Mother In-Law and Shawn, Jamie, Kara and Cory’s Grandmother.

Vinicio Morales

Senior Foreman
MD Licensed Tree Expert #1360
EHAP Certified Arborist

Vinicio has been with our company since 2002 and has worked his way up through the ranks, starting out as a junior grounds man. Today, Vinicio is considered one of the elite foreman in the business, as he possesses unsurpassed knowledge and exclusive abilities that cause him to receive countless accolades from all who witness his endeavors.