They have to take educational and ethics classes.

However, does this raise red flags for anyone else with regard to ethical conflicts of interest? 

It seems like you're hungry to learn, which might be your best asset along with your energy and work ethic. 

On those websites, you have no guarantee that the designer was ethical or legal in the production of you logo.

These are professionals with additional training and a stricter code of ethics.

and who operate in a profesional, legal, and ethical manner, there is nothing wrong with using double closing as your exit strategy.

Realtors supposedly have to operate by a code of ethics, in addition to following all laws.

In my opinion you get more out of acting ethically, doing the right thing, and having a solid understanding of the tenant-landlord law than by setting up LLC's.  

As long as you fulfill your duties as the buyer, and act ethically, the sellers credit will improve from your timely payments and you have lifted the burden of dealing with the mortgage company from the seller. 

These are professionals with additional training and a stricter code of ethics.