Entertainment and sports accountant Mike Vaden and his Vaden Group have allied with regional accounting and business advisory firm Joseph Decosimo & Co. to form a business management practice aimed at the entertainment industry and high-net-worth individuals.

California accounting firm Macias Gini & O'Connell has acquired Moreland & Associates, expanding its Sacramento base to Newport Beach and San Marcos.

New England regional accounting firm Vitale Caturano has acquired Jornata, a Boston-based technology solutions provider that specializes in Microsoft's SharePoint collaboration software.

Value-added reseller Net@Work has acquired Integral Computer Services and Brian Shube Consulting, expanding its Sage Software enterprise resource planning, customer relationship management and accounting practices.

Accounting firm Clifton Gunderson said it has acquired the Arlington, Va., federal government practice of UHY LLP, effective April 1.

Wolters Kluwer Law & Business has agreed to acquire the Accountants Division of MYOB UK and MYOB Ireland for 35.5 million pounds ($70.5 million), bringing the small business accounting and tax software developer into Wolters Kluwer UK's CCH Software division.

Tax Partner Named Woman of the Year

Business advisory firm FTI Consulting has acquired Forensic Accounting LLP, a London-based firm that provides expert witness and investigation services in accounting disputes, regulatory inquiries and due diligence reviews.

H&R Block has sold the mortgage loan-servicing business of its Option One Mortgage Corp. subsidiary to investor Wilbur Ross' private equity firm in a transaction valued at approximately $1.1 billion.

Accounting firms Gray, Gray & Gray and Patterson & Gerry have merged, expanding Gray's presence in the Massachusetts market.

CHICAGO FIRMS MERGE

Regional accounting firm Cherry, Bekaert & Holland has acquired Massey + Pittman, giving the firm a larger presence in the Atlanta area and expanding its real estate and construction industry group.

Two accounting firms, Mueller Yuva & Osterman and Larson and Associates, have merged to combine their strengths in auditing, estate planning and other services.

Accounting firm Lopez Levi PA has merged two local South Florida firms into its practice to expand its range of services.

Sage Software reseller Blytheco said it is merging another Sage Software business partner, Baker Consulting, into its firm, broadening its geographic coverage.

Kellogg & Andelson Accountancy Corp. has acquired the Los Angeles office of a subsidiary of UHY Advisors.

Gilman Ciocia has acquired Kelchlin Business Services, an accounting firm located in the Buffalo, N.Y., suburb of Depew.

Thomson has acquired TaxStream, a software provider that helps companies comply with income tax demands.

Super-regional CPA and business advisory firm Dixon Hughes said it would merge with Rhea & Ivy PLC. effective Feb. 1. Terms were not disclosed. The union will add some 70 employees and 12 partners to Dixon Hughes. Upon completion of the merger, Rhea & Ivy, headquartered here, will operate under the Dixon Hughes brand. The Rhea & Ivy team will remain in Memphis, while an existing Dixon Hughes office in Memphis -- whose client roster is comprised primarily of auto dealerships -- will combine with the new Memphis practice, bringing that team to more than 90 people. Ranked No. 17 on Accounting Today's 2007 Top 100 Firms list, Dixon Hughes generated annual revenues of $155 million.

Accounting firm Templeton & Co. has combined practices with James Machen Chartered, a CPA and consulting firm based in Boca Raton, Fla.