Mr Casey asked her about a house the couple owned in Ronaki Rd, Mission Bay, which they had sold for $1,450,000, and one at 2 Titai St, Orakei, which he said earlier was valued at more than $3 million.
Mr Casey told Justice Rebecca Ellis the couple were skilled, experienced realestate investors, "not naive or unsophisticated in property matters".
Ms Chen told the court how she and her husband bought 19 Judges Bay Rd in Parnell, which they subdivided, selling one half for $1.3 million and the other "probably for $2.75 million".
The couple used their company, Golden Land Investments, to undertake the Mission Bay, Orakei and Parnell purchases, she agreed.
However, she also told the court how she was "critically ill" in 2008 and was hospitalised three times.
"At times I was in a wheelchair. I was told I had cancer of the pancreas so I thinking I would not live very much longer," she said.
Trouble over the lease arose in 2009 and she left the property in 2011, handing the keys back to the board.
Ms Chen told Mr Casey she thought she could freehold the Greenlane property, having been told this by a Harcourts real estate agent at the time she bought from the Judsons, who had previously renewed the lease in 1988.
Ms Chen also said she was led to believe the ground rent would only ever rise to $40,000. Mr Casey asked her if she realised the ground rent was calculated on 5 per cent of the site's value without the house. Ms Chen said her lawyer had not told her that.
Asked if she had ever read the Cornwall Park Trust Board lease, Ms Chen said she did not ask to have it translated into Mandarin to help her understand it.
An interpreter is needed in court to translate written documents and all verbal communications.