Amorosi, 43, in August successfully sued Joyleen Robinson in the Victorian Supreme Court for full ownership of the Narre Warren property where her mother lives.
The house was purchased as a result of Amorosi's success but Mrs Robinson argued it should belong to her as she had paid her daughter the $650,000 they agreed to back in 2001.
Justice Steven Moore ruled the supposed agreement between the pair never happened and Amorosi should have full ownership of the Narre Warren property.
Joyleen Robinson (2nd right) will get almost $900,000 in restitution under the judge's ruling. (Joel Carrett/AAP PHOTOS)
But the judge agreed Mrs Robinson should receive close to $900,000 in restitution from Amorosi, taking into account the $650,000 payment plus interest.
The parties were unable to agree on the exact orders following the August judgment so Justice Moore made further rulings on Monday.
He ordered Mrs Robinson be given 60 days to move out of the Narre Warren property and hand over possession to Amorosi.
The singer-songwriter has the same time frame to pay her mother the $650,000 plus more than $219,000 in interest.
Justice Moore ruled the order should be stayed until March 31, 2025.
He said that would give Mrs Robinson time to find other accommodation and for Amorosi to sell the property to gain the funds for restitution.
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