Details of the Lundy family finances continued to be revealed in the High Court at Wellington today.
The 56-year-old is on trial for the murders of his wife Christine and 7-year-old daughter Amber, who were found bludgeoned to death.
Michael Porter had helped arrange the sale of two pieces of land west of Hastings, but Lundy kept missing settlement deadlines.
In July 2000, Mr Porter said he called Lundy to give him a deadline of August 30, by which time the interest penalty would have reached about $100,000.
"He was fairly quick to say that if we [pulled out of the deal], he would be bankrupt."
Two days before the deadline, Lundy told Mr Porter an investor was getting the money together for him.
Nearly a month after the murders, police asked Mr Porter to tape phone conversations with Lundy. Two conversations were taped, but only the second conversation was audible.
That conversation was played to the court.
In it, Lundy told Mr Porter he believed the motive of the killings was a burglary because some of his wife's expensive jewellery had disappeared.
Meanwhile, accountant David Hopping, who worked at the firm used by Lundy, told the court Lundy had had a stress attack about finances a couple of weeks before his wife and daughter were slain in their home.
Mr Hopping said Lundy's finances were "a little bit strained".
A few weeks before Mrs Lundy and Amber were killed, Mrs Lundy told Mr Hopping her husband had suffered a "stress" attack about their finances.
But he said Lundy had told him an investor was willing to invest half a million pounds in his vineyard venture.
Nothing ever eventuated from the investor, he said.
"It all came to a standstill once Christine and Amber were killed."
Under cross examination, Mr Hopping said if the vineyard business was successful, it would have brought the couple financial independence.