By Megan R. Wilson, The Hill.

Harold Hancock, the top tax counsel to the House Ways and Means Committee, has joined law and lobby firm McGuireWoods, the firm told The Hill.

In the new position, as a partner at the firm, Hancock stands to play an important role as tax reform moves through Capitol Hill this year.

He has spent the last six years on the tax-writing panel, serving under three chairmen: former Rep. Dave Camp (R-Mich.), now-Speaker Paul Ryan(R-Wis.) and the committee’s current leader, Rep. Kevin Brady (R-Texas).

Congress is working on advancing comprehensive tax reform, and leadership both in the White House and in the Capitol have a goal of completing it by the end of the year.

“It very much is a workable goal,” Hancock told The Hill of the year-end target. “Members need to make final decisions on what this plan will look like, and [congressional] staff is preparing every possible option for them.”

“As a staffer, your job is to write them with every possible option to make it workable,” he added.

The Ways and Means Committee has been taking the lead on tax reform and is working on legislation based off a "blueprint" on tax reform House Republicans released last year. The blueprint would lower the top individual tax rate to 33 percent and the corporate tax rate to 20 percent.