Dora Burch files her 2017 income tax return on March 2, 2018. She receives a nil assessment on June 3, 2018. However, on December 28, 2018, she receives a reassessment indicating that she owes a substantial amount of additional tax. She would like to object to this reassessment. What is the latest date for her to file a notice of objection?

Required: 

Indicate what additional information should be obtained during your next meeting with Dora Burch and what steps should be taken if you decide to accept her as a client.