Investors & landlords

I have a LLC for rental real estate. the property was sold during 2021.

1) Do I need to complete a 1099-S for the sale of  the property? or should I have received a 1099-S? I did not receive a 1099-S.

2) Do I still need to complete the 1065 for the LLC for the few months I owned the rental real estate? Do I still need to complete the depreciation for the property prior to sale?

3) Are there any other forms I need to complete for the LLC income filing? I saw a thread that mentioned a 4797(?).