Investors & landlords

This what you have to do. I fiured it out.
Fill in 1099-B

Select "this is a small business stock"

When it asks you if you want to adjust the cost basis check the top box that says "Help me figure out my cost basis" 

Then click through steps

You should see the "qualified small business 1202 exclusion" options at the end

If you do it right your summary will have a negative number under "adjustments" for this sale