If you inherit an IRA or another qualified plan, you cannot rollover the account into an IRA you own if you are a non-spouse beneficiary. Only if you are a surviving spouse may you rollover your deceased spouse's IRA or qualified account into your own name. If you are not a surviving spouse, you can rollover the qualified plan account into an inherited IRA in your name (as beneficiary) and the name of the decedent, but only if this rollover option is permitted under the plan.
For IRAs, you can transfer the amount to an inherited IRA in your name (as beneficiary) and the name of the decedent. A spouse beneficiary also has that option, but can also chose to transfer the amount to his or her "own" IRA. (For more, see Common IRA Rollover Mistakes.)