Bought over 50% of rental property from my friend in 2019. How should I handle this acquisition ?

In 2010, I bought a rental property with a friend with each of us having 50% ownership.

In 2019, I bought over this 50% from my friend, making me 100% owner of this property. 

For 2019 I added this newly acquired 50% into the property depreciation report.

 

From 2010 to 2018, the original property depreciation is reported at 50%.  

In 2011, we performed remodelling and depreciation report is at 50%. 

How should I handle this from 2019 onwards ?