Investors & landlords

The fact that I got a 1099S may raise eyebrows from the IRS if I dont file it explicitly in the Schedule D correct? 

 

I do have expenses to account for. Dont know how to best do this.

 

Which is more favorable Sch C or Sch D? 

I have a minimal net gain on the property of 5k.

 

I have a realized capital loss of 40k for 2020. 

I also have operating losses carried forward on the Sch C from last year of about 3k.