Soldier Bazar police station SHO Waqar Azeem told Dawn that lawyer Nasir Malik, 38, had gone to meet his sister at Al-Fareed Apartment in Garden East on Business Recorder Road.
He was reportedly in the parking area of the building when armed men opened fire on him.
The attackers fled the spot in private cars.
The lawyer was rushed to the Civil Hospital Karachi where the doctors pronounced him brought dead.
Soldier Bazar police station SHO Waqar Azeem told Dawn News the murder appeared to be an outcome of personal enmity as the deceased had a property dispute with someone in the area.
Speaking to Dawn, president of KBA Aamir Nawaz Warraich said the KBA would stage a protest outside CM House on Monday (today) and the legal fraternity would boycott judicial proceedings.
“In the past 10 days, three advocates have been attacked — two of whom have died while the third one is critically injured,” he added.