I am not a tax expert, but I have been filing my own returns for some years. I think that the K-1 is the authority. The info the brokers have on their 1099's may or may not be correct. I have a somewhat similar situation when brokers show 1099-MISC for royalties that have K-1's. The way I deal with this is to try to avoid doing something that might trigger a IRS computer red flagging something on my return. So, I report the brokers 1099-MISC figure in the section where I enter the broker's data. Because I think that the computer wants to see that figure there. Then, in the section where I enter the K-1, that is where I will correct for the broker's figure if necessary, and I will use the note box for that field to explicitly explain exactly what I am doing and why (as briefly as possible). So this way I do not change any of the broker's figures in the TT section where I enter the broker's data. But in the TT K-1 section I adjust the K-1 figures to correct the broker's figures if necessary. Sorry for your loss. The IRS has never given me a problem over this method so far! Good luck!
