Brett Gordon Williams, 61, was sentenced in Brisbane Supreme Court on Friday for the violent assault of his tenant Craig Dunn at Hervey Bay north of Brisbane on April 4, 2022.
Williams had been acquitted of murder but found guilty of manslaughter by a Maryborough jury in April.
Williams lost his temper with Mr Dunn following longstanding disputes involving the victim deliberately provoking him and pointing CCTV cameras towards his home at an industrial complex, Justice Peter Davis said.
On the morning Mr Dunn was killed, an inspection had been planned for a potential buyer of the complex by Williams.
But Mr Dunn pushed over a steel gantry in the complex's car park, which Justice Davis said was to affect sales prospects or annoy Williams.
Williams was provoked by his actions and assaulted him, with CCTV capturing the accused standing over Mr Dunn.
The men then walked towards Mr Dunn's nearby unit, with drops of his blood found trailing into it.
Williams entered the unit and took CCTV cameras before going to a nearby pool shed where the Crown said Mr Dunn was fatally assaulted.
The landlord took Mr Dunn's mobile phone and drove off, disposing of it in some bushes and throwing the CCTV cameras in a bin.
Prosecutors had earlier argued Williams had tried to dispose of evidence.
"If that was your aim, you could have done a better job of achieving it," Justice Davis said.
"You made no attempt to destroy either the cameras or the phone. Indeed, you didn't even turn the phone off.
"I have always been puzzled by the fact that you dealt with the phone differently to the way you dealt with the cameras."
A pathologist determined Mr Dunn's cause of death was a collapsed lung caused by broken ribs struck with significant force, Justice Davis said.
Mr Dunn also had fractures to his skull, neck and nose along with an elbow dislocation.
"I find consistently with the verdict that you applied the force necessary to cause the injury which caused the pneumothorax (collapsed lung)," Justice Davis said.
"I cannot make any findings as to the mechanism by which the force was applied."
Williams was sentenced to eight years' jail.
His parole eligibility is set for April 2026, after 1216 days of pre-sentence custody was declared as time served.
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