I wouldn’t call the IRA trustee an “exempt organization.” The instructions are unclear, but they do say  “If the partner is a nominee, use one of the following codes after the word “nominee” to indicate the type of entity the nominee represents: I—Individual; C—Corporation; F—Estate or Trust; P—Partnership; DE—Disregarded Entity; E—Exempt Organization; IRA—Individual Retirement Arrangement; or FGOV—Foreign Government.”

The trend has been for the real estate to be placed in an LLC, with the IRA trustee as its (nominee?) owner. Since there are two different EIN’s and presumably just one trustee for both halves, is that what was done? I don’t think you’re using the trustee’s EIN.

You really don’t want to do this return, do you?