Do I need a DBA or LLC?

[K W]

Looking to buy my first 4-plex. Do I really need a DBA, or since it's residential property can I just keep good records and have everything in my own name?

What if I buy the property in my name, and then get a DBA to run the property money through, is that okay since the property would be held in my name instead of the DBA?

thanks in advance