Please help me in writing a legal memorandum for the following scenario. The necessary elements should include: the overview of the case, issues, arguments, solutions/pathways, necessary mandatory and supplementary documents, application package/guide/s, etc.

Sara is radiologist (specialist physician). NOC 3111, skill level A. She is 32 years old. She is living in Iran. She is working in Rayan Research institute as a part time researcher from 2015, meanwhile is working in Pars hospital from 2016 as a full-time employee. She loves her career and research. She is really keen to be update in medical field and her specialty. She is really responsible physician and recently got her good standing from medical council. In 2017 she met one of her colleagues in medical congress, Amir. They fell in love after a couple of months. They decided to get married. Later they face serious issue regarding their marriage. Amir belongs to one part of the country, Iran, who have really strict etiquette and traditions. They have to marry only with their own girls. Amir started debating with his family, but they did not accept. opposition and defiance to the familial and tribal rules regarding marriage will have rough and severe punishment maybe to death.Amir's oldest brother, shahrouz, immigrated to Canada owing to this culture 10 years ago. But still, he is single. Amir thought that the way his parents behaved his brother and lost him, maybe induce different attitude, but it did not. They made a decision to live with each other secretly. They bought jointly a lovely and cozy flat. This happened on 2018. After a year Sara noticed that she has unpleasant signs of a disease. She went under medical screening and examination. She found that she got cancer, but fortunately it is not malignant but .one of the main reasons of that, could be exposing to routine radiation as her profession although it is hypothesis, not proven. She got medication and treatment procedures of her cancer. The amount of money she is paying for is 70.000 CND annually, cancer is under control and she can easily work. Amir, her common in law is a general practitioner doctor but he loves car. He spends most of his time on his main business, car detailing company. He has this business from 2010 and it is really profitable. this is the first profession of Amir, and he has all of the certificates and passed needed education in this field. Amir is working part time in another hospital from 2010. He is 45 years old. He is really good at English and has IELTS general 8 as follows: speaking 8 listening 8 reading 8 writing 8. NOC of his car detailer is 6732, skill level D. NOC of his part time work as a doctor is 3112 and skill level A.

They are thinking about immigration now. Amir is eager because he thinks if they want a legal marriage without any parent's objection they have to migrate. Amir believes that his brother will support him to stablish their free marriage in Canada and Sara thinks that this opportunity will let them to live freely as a couple in and they will be able to enjoy their life. They came to you and needed consultation regarding immigration to Canada.

What would you suggest them to do? Which approach would be best for them?