Top 100 Firm McGladrey LLP has signed a definitive agreement to acquire considerably all of the assets of the Oklahoma City-based firm Cole + Reed. The deal is expected to close on December 1.

BDO USA LLP has entered into an agreement to acquire Top 100 Firm UHY Advisor's Texas practice. The deal is expected to close on December 1.

A roundup of recent accounting firm mergers & acquisitions

Rosen Seymour Shapps Martin & Company LLP has been undergoing major changes as 13 of RSSM’s 24 partners have left in recent months to join other major firms in New York, Citrin Cooperman and WeiserMazars, including two former managing partners.

The global tax services firm Ryan has signed an agreement to acquire another large tax services firm, WTP Advisors.

Xero announced it acquired online payroll company Monchilla to expand its payroll offerings to small businesses in more U.S. states.

Janover LLC increased its staff with the addition of team members from Liss Okun & Associates. The combination is expected to close at the beginning of 2015.

BDO USA’s recent addition of SS&G staff and partners, which bolstered its presence in the Midwest, came with a healthy serving of SS&G’s restaurant practice. “This deal is huge for us,” Wayne Berson, CEO of BDO USA, said during an interview with Accounting Today.

Top 100 Firm BDO USA LLP has made a major expansion in the Midwest with the addition of more than 375 staff, including 36 partners, from SS&G Inc and its SS&G Parkland subsidiary.

Top 100 Firm Wipfli LLP added Assurity River Group to the firm. Upon completion of the acquisition, Assurity’s associates will join Wipfli’s Risk Advisory and Forensics Services Practice.

The EntryPoint team will join KPMG’s Trade and Customs Practice enabling KPMG to provide both regulatory and technology consulting under one umbrella.

A roundup of merger and acquisition news.

A collection of recent accounting firm mergers and acquisitions

Accounting firms Elliott Davis and Decosimo said Wednesday they plan to merge at the beginning of the year to create one of the largest regional firms in the U.S.

Arnett Foster Toothman PLLC and Carbis Walker LLP have agreed to merge and will take on the new name of Arnett Carbis Toothman LLP come Jan. 1, 2015.

Top 100 firm Carr, Riggs & Ingram LLC has enhanced its presence in Alabama by merging in Boohaker, Schillaci & Co.

O’Connor Davies LLP, a New York City-based CPA firm, said Tuesday it would merge with Perl & Asch CPAs, P.C., a 26 year-old practice in Purchase, N.Y., effective Jan. 1, 2015.

John Bevilacqua and Susan Bevilacqua join Bonadio as partners

Top 100 Firm Whitley Penn has agreed to merge with JonesBaggett LLP. The deal is slated to close on Nov. 1, 2014.

AbbVie Inc. may scrap or renegotiate its planned 32.4-billion-pound ($51.5 billion) deal for Dublin-based drugmaker Shire Plc, in what would be the biggest casualty of the U.S. crackdown on so-called tax inversions.