According to the Canadian Investment Funds Course, an RRSP is a retirement savings plan that allows individuals to defer taxes on their contributions and investment income until they withdraw the funds.
However, an RRSP cannot be held indefinitely and must be terminated by the end of the year the annuitant turns 71. At that point, the annuitant has three options to withdraw the funds from the RRSP:
* Make a lump-sum withdrawal, which is subject to withholding tax and income tax.
* Convert the RRSP to a registered retirement income fund (RRIF), which provides a steady stream of income with a minimum amount that must be withdrawn each year.
* Purchase an annuity, which offers a guaranteed income for life or for a specified period.
References: 1: Canadian Investment Funds Course - IFSE Institute 2 (Unit 9: Retirement)

Explanation
Dustin needs to ensure that his recommendation is suitable for the new joint account, which may have a different risk profile than the individual accounts of Salvatore and Harriet. A joint account is an account that is owned by two or more people who share the rights and responsibilities of the account. A joint account may have different investment objectives, time horizon, risk tolerance, and financial situation than the individual accounts of the joint owners. Therefore, Dustin needs to conduct a know your client (KYC) process for the joint account and determine the appropriate risk profile for the account, based on the collective responses of Salvatore and Harriet. The risk profile of the joint account will guide Dustin in recommending suitable investment products and services that match the goals and needs of the joint owners

Explanation
According to the MFDA rules, a Member or an Approved Person cannot accept or act upon a general power of attorney or other similar authorization from a client in favour of the Member or Approved Person, unless the client is a spouse, parent, or child of the Approved Person and certain conditions are met. However, a Member or an Approved Person can accept a limited trading authorization from a client, which allows the Member or Approved Person to execute trades on behalf of the client, but not to engage in any discretionary trading.
Therefore, Josephine can accept a limited POA from her brother, as long as she does not make any investment decisions without his consent.
References = Canadian Investment Funds Course (CIFC) - Module 1: The Financial Services Industry - Section 1.3: Know Your Client (KYC)1 and web search results from search_web(query="power of attorney and mutual fund dealers association rules")23
1: https://www.ifse.ca/wp-content/uploads/2021/08/CIFC-Module-1.pdf