William O'Neil, 47, was sentenced to four years and six months in prison after being convicted of mortgage fraud.
His sister Deborah Hayburn, 49, and partner Denise McNeil, 43, were jailed for two and three years respectively for their parts in the scam.
O'Neil fraudulently obtained a £78,500 mortgage from the bank in 2002 to buy a flat in the Ruchill area of Glasgow, prosecutors said.
He told the bank he lived in Glasgow and worked as a warehouse manager importing and selling Indonesian furniture with Indowoods Limited for a salary of £32,000.
In fact, he was a prisoner in HMP Glenochil serving part of a seven-year sentence for supplying drugs.
Five years later, Hayburn managed to secure a £127,890 loan to re-mortgage her flat in Glasgow. She said she earned £95,000 when her wage as a carer for Glasgow City Council was £23,000.