Over his lifetime, Peter Hood started and purchased numerous automobile dealerships that he eventually transferred to a newly formed entity, Hood Corporation. Upon his death in a previous year, the stock in Hood Corporation passed in equal shares to Peter's surviving spouse, Martha, and their adult children, John and Helen.

For John Hood, $2019$ proved to be an eventful and final tax year. Among the major happenings were the following:

In January, John's divorce from his first wife, Hannah, became final.

In February, he married Ashley, the manager of one of the Hood car dealerships.

He made various gifts to family members.

In July, John's mother, Martha, died of a heart condition, and John served as executor of her estate.

In late November, he was seriously injured in a car accident $($caused by another motorist$).$

In early December, John carried out some pre$-$death estate and tax planning.

John died of his injuries in mid$-$December.

What are some of the tax problems $($i$.$e$.,$ income, gift, and estate taxes$)$ that might be encountered as a result of these events?

Read the chapter and formulate your response.