Research Problem 2. Kathy and Brett Ouray married in 2001. They began to experi- ence marital difficulties in 2015 and, in the current year, although they are not legally separated, the couple considers themselves completely estranged. They have con- templated getting a divorce. However, because of financial concerns and because they both want to remain involved in the lives of their three sons, they have not yet filed for divorce. In addition, the Ourays' financial difficulties have meant that Kathy and Brett cannot afford to live in separate residences. So Kathy, Brett, and their three sons all reside in a single-family home in Chicago. Although Brett earns significantly more annual income than does Kathy, both par- ties contribute financially to maintaining their home and supporting their teenage sons. In one of their few, brief conversations this year, they determined that Brett had contributed far more consideration than had Kathy to the maintenance of their home and the support of their sons. Thus, Brett has decided that for the current tax year, he and Kathy will file sepa- rate Federal income tax returns and he will claim head-of-household filing status. Even though they live under the same roof, Brett believes that he and Kathy should "maintain separate households." Therefore, Brett believes that he is eligible for head- of-household filing status. Advise Brett on which filing status is most appropriate for him in the current year in a letter to him at 16 Lahinch Parkway, Chicago, IL 60608. not