A. It's a good idea to keep the IRA accounts as they are today even you are moving overseas, so you can keep getting the tax benefits. However, the Patriot Act has led some brokerage firms close the financial accounts for people who cannot provide a U.S. mailing address.
But there are still some major ones allow you to keep your IRA accounts in the U.S. For example, Vanguar, Fidelity, and T. Rowe Price all allow their overseas clients to keep their IRAS with or without an U.S. mailing address, they will send distributions electronically or by check.
However, Federal government requires that 10% of a distribution be withheld for taxes for those without U.S. mailing addresses.