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Libby Williams is an experienced accounting professional with a background in accounts receivable, billing, and project administration. Currently serving as an Accounts Receivable Specialist at Countywide Mechanical Systems, LLC since July 2023, Libby previously held the position of Billing Specialist at EMCOR Services Mesa Energy Systems for six years, where responsibilities included invoice generation and service order verification. Prior experience includes roles as an Accounting Specialist at ABM Building Services, LLC, focusing on accounts payable and receivable tasks, and as a Project Administrator at Trane, managing project documentation and vendor invoicing. Libby's career began as a Facilities Administrator at L-3 Communications, providing operational support. Educational qualifications include a Bachelor of Science in Business Administration and an Associate of Science in Business Administration from the University of Phoenix. Libby possesses intermediate skills in Microsoft Office applications.