First Time filing 1099s....pretty confused

[Ethan H.]

Last year, I began managing properties for other people (instead of just my personal properties). I never even thought about 1099s until one of my Owners asked me about one today. I am a bit confused about what info goes on the 1099. Am I supposed to be listing the amount:

1. The Owners have paid me to manage their properties

2. The amount of rent money that I have sent the Owners from their properties

3. Or something completely different?

I know this probably sounds like a silly question. But this area has definitely been a weak spot for me. I appreciate all of your help!