PORTLAND, Maine — A Bowdoinham attorney has been suspended from practicing law for the next six months for violating bar rules concerning conflicts of interest with clients.

The suspension for Andrews Campbell will begin Nov. 1 and end May 1, according to the agreement reached Tuesday between the Maine Board of Overseers of the Bar and Campbell and approved by Justice Donald Alexander of the Maine Supreme Judicial Court.

The suspension resulted from grievances filed against Campbell by three clients.

This is the latest disciplinary action taken against Campbell, who began practicing law in 1972. He was disbarred in 1989 for unprofessional conduct after he was convicted in federal court of possessing with intent to distribute marijuana. He was reinstated in 1999. He also was reprimanded twice — in 2006 and 2010 — by a panel of the grievance commission of the board.

The current violation of bar rules involves several actions. Campbell drafted a will for a client, 77-year-old Mildred MacComb, in February 2005 in which he was named a beneficiary of 2 acres of land and her sheep. Then in May 2008, Campbell wrote up a deed for MacComb in which he would get the land from her. The court order states that his actions presented a conflict of interest and violated bar rules.

In May 2006, Campbell put together paperwork for a loan for a criminal client from two other clients without properly informing them that he was representing both sides. He then further violated bar rules by trying to collect money from a woman who signed a mortgage to secure the loan. This was a conflict of interest, the agreement states.

Campbell was represented by attorney Justin Andrus of Brunswick.