Woman making wasiyyat to gift her house to her husband's heirs

Q: I would like to find out if this method is correct. If not, what would be the best method? 

A man had a family. His wife passed away then he remarried. Before he passed away, he gifted his house to his wife. 

She is living in the house but she made wassiyat for it to be given to her husbands heirs when she passes away. 

She has brothers, nephews and nieces (some of them are aware and happy about her decision). 

Her husband's heirs were not yet told gifted or made owners of it.

Paying off gambling debts of the deceased

Q: A member of our community as an heir would like to know if it's permissible to pay off gambling debts accrued by the deceased to pay off multiple gambling debts accrued to Muslims and non Muslims. 

Notes: 

1. A member of family has come forward to assist with these debts as they too want to rid of their unwanted interest income in order to assist with paying off these debts. 

2. The deceased does have an income deriving property asset in his estate but the income is little to none and will take years to save and accumulate the funds required to pay off the gambling debts.

Husbands telling his wife "you are free" without intending divorce

Q: There was an argument over a mobile message. My wife said, "Leave me." I told her not to say that, but she repeated, "Leave me." I replied, "You are free," but I had no intention of divorce, nor did I know that saying such words could lead to a divorce. Later, my wife told me that I had used the wrong words. After that, we reconciled. 

Four months later, during another argument about household chores, my wife said, "I won't do this." I replied, "Then you are free," but at that time, divorce or separation was not being discussed. Later, I realized that I had said something wrong. 

How many divorces have taken place in our case?