Investors & landlords

Ok, thank you. 

If I co-owned (50/50) the property, I assume I just claim my half of the proceeds?

 

Also, the lot had been purchased by a relative and a partner, 30-40 years ago - they then built to spec, a building, that they rented to a commercial retailor.  After the partner passed away, I bought his half.  So my question is: do I still list sale proceeds under asset sales price (building) or include land?