What are the requirements needed to become Prime Minister of Canada?

Any Canadian citizen of the voting age of 18 or older can become prime minister of Canada. To become prime minister, a person must first be elected leader of a national political party.

Legally, any citizen of Canada of voting age (18 years) can undoubtedly be appointed to the office of Prime Minister, these being the requirements to gain election to the House of Commons. Since it is not legally necessary for the Prime Minister to be a sitting MP, there is some question as to whether there are technically even age or citizenship restrictions to the position. In any event, it is customary for the Prime Minister to also be a sitting member of the House of Commons, although two Prime Ministers have governed from the Senate: Sir John Joseph Caldwell Abbott and Sir Mackenzie Bowell

https://en.wikipedia.org/wiki/Prime_Minister_of_Canada

It would also be helpful if the person spoke both French and English.

https://en.wikipedia.org/wiki/Bilingualism_in_Canada