So, there is one property, but the deed says "Bob-Carol LLC as to some percentage, and Ted and Carol Smith as to some percentage."  And when the tenant asked the LLC couple for a W-9, they were so proud of the LLC that the guy at the seminar had told them to set up, that they gave them just the one number?  So what did they expect?  Technically, they should now give the other owners a 1099 for their share of the rent.  But the next best solution is to report all the rent on the 1065, then deduct the payments to co-owners as, let's see, I would call it "payments to co-owners."