Please see my answer to your question in the additional information that I just added. Thank you!
Sorry. I don't see any additional information.
OK, your additional info has just 'popped' up.
I see your perspective .. but find it hard to believe that your real estate company employer can't provide you access to the MLS without making you become an agent.
If you don't make any attempts at selling, nor receive any payments .. you will probably be OK.
Better yet, see if your employer's immigration attorney can some how 'craft' your job description to include that activity.