You don't have to go to same person to set up a SMSF who can also sell you an apartment.
I would get independent financial advice, and if SMSF is the way to go then get them to set it up.
The next step is to do your own research just like you would in your own name to find a quality investment. Confirm investment is suitable with advisor and arrange the purchase.
Anyone looking to combine the above would have a clear conflict of interest in my opinion.