Eduardo Hernandez, 34, was found guilty of one count of aggravated child molestation and three counts of child molestation for acts perpetrated on a young girl over several months in 2011.
Cobb Superior Court Judge Robert Leonard has set sentencing for 1:30 p.m. April 15.
Hernandez could face life in prison plus 60 years.
The jury reached its verdict Thursday evening.
“This defendant took advantage of a little girl living in his home,” said Assistant District Attorney Chuck Boring, who prosecuted the case.
“The girl is 7 now and doing well in school,” Boring said. “The family is happy to close this chapter of their lives and move on.
“The defendant is in this country illegally, and once he is done serving his prison sentence, he will be deported,” Boring said.
The trial began on Monday, April 1, with jury selection.
Atlanta attorney Peter Odom was appointed to represent Hernandez.
Hernandez was arrested in August 2011 and has remained at the Cobb County Jail without bond.
He also has a hold on his release by U.S. Immigration and Customs Enforcement.