Legal Question in Wills and Trusts in New Jersey

The trustee recieves the assets, so the trustee signs the refunding bond.

However, since you are in a conflict position [you are both executor and trustee]...your sister could later complain that the trustee should have objected to something the executor did. To counter that potential claim, you could, as executor, have both your sister and the trustee approve an estate accounting, or if she will not agree to that, you can file your accounting in court and seek judicial approval.

I agree with Jon, as this is best appraoch, although having your sister also sign the Refunding Bond as beneficiary of the trust, along with you as trustee, could also accomplish the same result.