Estate planning chapter 10 homework questions 10. maria is a citizen and resident of mexico. she was married to jose, a u. s. citizen, and is his sole survivor, which of the following techniques or arrangements would be useful if his gross estate is $15,000,000 a. the unlimited marital deduction. b. a bypass trust. c. a qualified domestic trust (qdot. d. a qualified terminable interest property trust (qtip) for non residents.