Abacus Worldwide, an association of independent accounting, consulting and legal businesses, has expanded its network with new members in the US and Turkey. Barnes Preston Global CPAs, based in Ft. Lauderdale, Florida, has joined under the Abacus One category, which is aimed at solo practitioners looking to scale their practices. The company supports both individual and business clients on US and cross-border tax and accounting matters, with a focus on complex financial arrangements and international ta ...