Mr. Patrick G. O'Brien has been the President of CB Financial Services, Inc. since May 17, 2017. Mr. O'Brien has been the President of Community Bank since May 2017. He has been president of CB Financial Services Inc since May 2017. He has been Senior Executive Vice President and Chief Operating Officer at Community Bank since November 2014. He served as the Chief Operating Officer and Senior Executive Vice President of CB Financial Services, Inc. from 2015 to May 17, 2017. He served as the Chief Executive Officer and President of First Federal Savings Bank since May 2009 until October 2004. He served as Chief Executive Officer and President of FedFirst Financial Corp. since May 2009. He served as Corporate Secretary of FedFirst Financial Corp. He served as the Chief Operating Officer and Executive Vice President of FedFirst Financial Corp. and First Federal Savings Bank from September 19, 2005 to May 2009. He served as Regional President and Senior Lender of Commercial Lending of WesBanco Bank, Inc. from March 2002 to August 2005. Before serving with WesBanco Bank, he was Senior Vice President of Commercial Lending with Wheeling National Bank from August 1999 to March 2002 and Vice President and District Manager (Retail Banking) at PNC from 1993 to 1999. Mr. O'Brien served as a Director at FedFirst Financial Corp., since 2009. Mr. O'Brien has been a Director of CB Financial Services, Inc. since November 2014 and First Federal Savings Bank since May 2009. He serves as a Director of FedFirst Financial MHC and Exchange Underwriters Inc. He serves as a Director of Exchange Underwriters Inc. Mr. O???Brien is actively involved in many community and business organizations in the region. He has been the Board Chairman of the Washington Hospital Foundation since 2000, Board Member of the Boy Scouts of America - Greater Pittsburgh Council, Vice Chairman of the Boy Scouts of America - Mingo Trails District, Board Member and Treasurer of West Penn Power Sustainable Energy Fund, Board Member of Economic Growth Connection of Westmoreland County and Board Member of North Bethlehem Township Planning Commission. He served as Chairman of the Washington County Chamber of Commerce PA since January 2011 until December 2012. He is also actively involved with his church, Bethlehem Church in Glyde, PA. Mr. O'Brien earned a B.S. in Business Management from Waynesburg University. He is also a graduate of the Pennsylvania Bankers Association, Central Atlantic Advanced School of Banking at Bucknell University and the American Bankers Association, National Commercial Lending School, Southern Methodist University.