OK, if I am understanding your questions correctly, the following would apply.
TOTAL TO SCHEDULE K-1, BOX 20, CODE N ($amount here) Enter it on K1-RE, correct?
Yes
ORDINARY INCOME (LOSS) ($amount1 here) - Enter it on K1-OBI - correct?
Yes
RENTAL REAL ESTATE INCOME (LOSS) ($amount2 here) - Enter it on K1-RE - correct?
Yes
SECTION 1231 GAIN (LOSS) ($amount3 here) - Enter it on K1-RE - correct?
Yes
