A Butler County lawyer has been disbarred for not reporting several criminal convictions he received throughout the years, as well as practicing law after having his law license suspended.

On Thursday the Disciplinary Board of the Supreme Court of Pennsylvania disbarred Nathan D. Lyle, 34, of Butler.

On Friday Lyle couldn’t be reached for comment and the listed number for his Butler-based law practice was unattended. Lyle was admitted to practice law on Aug. 13, 2012, and his office is on South Washington Street, according to information kept by the disciplinary board.

Lyle’s troubles with the disciplinary board began in 2015, according to findings of fact presented to the board on July 20. The board suspended Lyle as a practicing attorney on April 5, 2015, finding that he failed to complete mandatory continuing legal education. Despite this, the board found, Lyle continued to work as a criminal lawyer on a case from Butler County he had taken in 2014, and did not notify his client that he had been suspended, according to information presented to the board. Lyle also continued to practice law in Westmoreland County, the board said, where he took on a criminal case shortly after being suspended and did not inform his client that he was prohibited from practicing law.

The board also cited Lyle’s criminal history in its disbarment order Thursday, noting that in August of 2016 Lyle was charged with DUI. He pleaded guilty in October 2016 to one of the DUI charges.

Lyle also pleaded guilty Feb. 9, 2017, to DUI and endangering the welfare of children in Allegheny County, the board said, in a case from April 28, 2016.

The board said Lyle did not report either offense to the Office of Disciplinary Counsel, which is required for practicing lawyers in Pennsylvania.

Finally, according to the board, Lyle refused to respond to or participate in the disciplinary processes touched-off by his violations.

Late last year, the board said, Lyle was served twice with petitions for discipline and failed to respond. He also failed to appear at a pretrial conference and a disciplinary hearing which were held earlier this year.

The board determined that Lyle violated 15 rules of conduct, according to filings. The board wrote that Lyle’s “misconduct is aggravated by several factors.”

One of them is “he utterly failed to participate in the disciplinary process by failing to answer the petitions for discipline and ... failing to demonstrate any remorse for his actions.”