PORTLAND, Maine — A judge has denied a request for a new trial from a Maine landlord who was sentenced to 90 days in jail after a fatal fire at one of his properties.

The 2014 fire at a Portland apartment house killed six people. A judge sentenced landlord Gregory Nisbet for a code violation in December after acquitting him of manslaughter charges. The judge ruled the building had inadequate means of escape from third-floor rooms at the house.

Nisbet’s lawyer had argued that the prosecution was slow to turn over a memo from the state fire marshal detailing the use of windows as secondary escapes in older buildings. The judge said regardless of when the defense saw the memo, the building still didn’t meet the requirements.

Nisbet plans to appeal the conviction.