For this question, I'm only asking about the United States and if relevant, LLCs in the state of Texas. While reading about asset protection strategies and trying to understand corporate veil piercing; I came across two different articles.
Piercing the Corporate Veil discusses "Alter Ego" which requires fraudulent intent and "Single Business Enterprise Theory" (which would pierce a lot of asset protection strategies I've read about).
Texas Supremes Overturn Single Business Enterprise Theory appears to say that Texas no longer considers the Single Business Enterprise Theory valid for piercing the corporate veil; leaving only Alter Ego w/ Fraud involved to pierce the veil.
Say there is a holding company Acme LLC that wholly owns two operational subsidiaries that provide different products and services. Acme LLC is a small business, so there is overlap in officers (members of Acme LLC). Few if any employees/contractors are involved and have contracts with the subsidiaries.
As long as there is no fraud, is it safe to assume such a business structure's corporate veil would be secure; or are there other methods of veil piercing that need to be considered?
Are there any non-obvious actions that aren't "fraud" (no intent to deceive or defraud) but still would be considered such for corporate veil piercing purposes?