Squire Patton Boggs is planning to consolidate its offices in New York, Washington and Riyadh by the end of the year as integration of the two legacy firms gathers pace.

The firm, which was formed with the merger of Squire Sanders and Patton Boggs on June 1 this year, has already appointed new practice heads and begun combining its IT systems and is now prioritising the integration of the legacy firms' staff.

In New York, legacy Patton Boggs lawyers will move into Squire Sanders' base in the Rockefeller Plaza, while in Washington and Saudi Arabian capital Riyadh, Squire Sanders' lawyers will move into Patton Boggs offices located on M Street NW and King Fahad Road Sky Towers respectively.

Chief executive James Maiwurm said the aim was to integrate the offices by the end of December but in Washington the process could take a little longer due to renovations. He said in some cases leases will expire and in others the firm will sublease the space.

"The duplicate offices we are in the process of dealing with. We expect this [to be completed] by the end of the year," he told Legal Week.

"We have good people and experience doing law firm integrations and we are well on our way to integrating IT systems. What we are trying to do is everything we can to encourage collaboration. It won't happen overnight but we have new practice group structures in place, we have aligned our industry group areas, we have a lot of informal networking and we have a task force in place for integration."

Asked about remuneration, Maiwurm confirmed earlier reports that Patton Boggs would move onto Squire Sanders' non-formulaic performance-based scheme, which is understood to focus less on the origination of work and more on collaborative working across offices.

The firm intends to introduce the new scheme to Patton Boggs lawyers by early next year, the legacy outfit having voted to switch at the end of 2013.

"They decided when they did their strategic plan that they would move to a performance based system – so essentially they will be moving on to ours," said Maiwurm.

"This will be effective in January 2015."

Squire Sanders and Patton Boggs first began discussions about a merger in February, with the plans finally formalised in May when Patton Boggs turned its back on another merger offer by Dentons.

The deal went live on June 1, creating a 1700-lawyer firm in 45 offices across 22 countries, with combined revenues of more than $1bn (£600m).