Amend the return to remove the 4852 and add the K-1....
If the IRS accepts your
return then you should wait on any Federal refund to arrive first,
then amend the return by preparing Form 1040X to add the additional W-2
information. If you end up having to prepare an amended return, it cannot
be efiled; it has to be printed, signed, and mailed.
In the meantime, do NOT
make any changes in your original return. If you have to resubmit or amend later, it
has to start off with the return as you originally filed it.
https://ttlc.intuit.com/replies/3288565
