I just found what I was looking for concerning my comment on late filing penalties. In your original post you state:
We have filed an extension for 2018 and I am still trying to get everything organized.
SO with that comment it indicated to me that all this occurred in 2018. SO even with an extension for the 1065 partnership return, the late fees for that return started accumulating on Sept 15th, 2019. I assume you meant to type 2019 in the above. But that's a moot point now.
