It's pretty easy and cheap in many states to organize a LLC. In my state you file the LLC organizing documents online and pay a fee of just $50. You use the same process (with slightly different information, of course) for a trade name (DBA) and the cost is $20. It may be worth the extra $30 and some extra administrative overhead to form a separate LLC for the real estate investment, depending on the details of it. That's why seeing a business attorney and tax attorney or other tax professional, as we've both recommended, is a good idea for Pipan. The details of his/her situation matter as to what will work out best.You can often save money and time by adding DBAs to an existing LLC.