Changing Business type from rental income to income only

My sister and I have an LLC that only holds a building with residential and commercial spaces.  In 2024, we sold the building on contract.  2024's tax return included partial rental income and interest income.  2025 was only interest income (1099-INT).  Do I need to change the type of business of the LLC? And if so, to what?  I'm uncertain on how to proceed with the return.  

 

Thank you for your help!

Carolyn