Is there any difference between...

Hello everyone

I'd like to ask if there is any difference in meaning between:

1. He is in the real estate business.
2. He deals with real estate.
3. He is in the property business.

For example, I want to say that a person works in the area of the real estate without naming his/her particular profession. Which of the sentences above sounds better?

1 and 2 are the most clear and are general enough.

3. is not clear. It could mean he is a builder or developer.

You might also want to mention, if needed, whether he is a commercial or residential real estate agent.