They also set up the Hawkhurst Trust for the Smith family and the Wanstead Trust for the Woodward family.
In 2013, the APLJ Trust was worth $5.6 million. The Wanstead Trust had $1.5 million in capital and about $500,000 in cash.
The Woodwards claimed the Smiths had stopped them from being involved with interests held by the one of trusts.
Mr Woodward also alleged his uncle had moved funds from the two trusts to the Smith family trust. Mr Smith denied this when it went to trial last year. Both parties reached an agreement at trial and signed a deed of settlement.
But the families failed to stick to this - which brought the matter back to court this year.
Last week, Justice Kos spoke to the family, who were in court, and said the litigation had gone on "quite long enough".
He said if they failed to come to an agreement, the value that might be used to settle would be depleted over months or years of further litigation.
The families went away during an adjournment and finally came to an arrangement.
The Woodwards accepted $1.3 million, made up of cash and property. Justice Kos thanked the families for "bringing this cancerous state of affairs to a conclusion".
In his ruling he said: "I am delighted the parties saw sense."