They had argued that when Blue Chip marketed its investment schemes it was offering securities to the public in terms of the Securities Act 1978 and was required to provide a prospectus.
In the Supreme Court, Justices Sian Elias, Andrew Tipping, John McGrath, William Young and Noel Anderson agreed that the appellants' Securities Act arguments "are correct".
"When Blue Chip was marketing its investment schemes, it acted in breach of the Securities Act and thus brought into play s37 of that Act which renders unenforceable the allotment of improperly marketed securities and the associated subscription of such securities," the judgment says.
The Supreme Court also held the developers of the apartments to be issuers in terms of the Securities Act, "giving rise to entitlements to relief" under the Act.
"We see the Blue Chip products as providing mechanisms by which Blue Chip sought and obtained financing from the public," the judgment says. "It is true that they were also buying apartments but under the investment schemes the apartments had a very limited function. Provided all went according to plan, the investors were never to occupy the apartments."
When the Blue Chip Group collapsed in 2008 the developments, by separate companies, went ahead and the investors faced difficulties in raising the necessary funds.
The court ordered the respondents, development companies Turner and Waverley, Greenstone Barclay Trustees and Grafton Projects to pay costs to the appellants of $75,000 plus disbursements.
"It means I can be happy," Mr Lester said, recalling the fear, pressure and misery suffered since around 2006. "Every time something good happens, you can't enjoy things, or look an hour ahead."
Lester was yesterday being asked by some media if he thought the deal he had signed was too good to be true.
But he bridles at this.
"We never invested anything. As far as we were told, we were loaning Blue Chip money and they would pay us back in four years. I think it's okay to loan money and expect to be paid back. We never even knew we were buying an apartment," Lester said.
Additional reporting: BusinessDesk