Daniel Wayne Surrette and Kyle David James Fredericks will appear in court in Kentville.
Lawrence's body was found Oct. 23, 2013 in a burned-out bus shelter in Berwick, a small town in the Annapolis Valley about 120 kilometres northwest of Halifax. At the time, he was homeless and sleeping on the streets of Berwick.
Both of the accused have sordid histories with Nova Scotia's justice system.
Surette pleaded guilty to sexually assaulting a female victim who was under the age of 16 in late December 2010. He was sentenced to 90 days in custody, plus placed on probation.
He pleaded guilty to assaulting his mother on New Year's Day 2011. He received a one-year suspended sentence in that case.
Fredericks was tried and acquitted in the death of Joshua Graves. Graves died on March 19, 2011 after taking a lethal mix of alcohol and Dilaudid at a house party in the Annapolis Valley the previous night.
Police said as far as they know, there is no relationship between the two accused and the victim.