This is an insightful blog about Delaware LLCs and "Piercing the Veil". It's more for attorneys: http://www.mgmlaw.com/the-delaware-llc-is-not-a-corporation-and-should-be-subject-to-a-different-veil-piercing-analysis
Utah's LLC statute follows the Uniform Revised LLC language adopted by several states, including California.
Utah has a fairly simply system to file an LLC certificate of organization. For business-savvy DIYers, this is something you can easily do. If this is unfamiliar territory, we recommend getting professional assistance. When it comes to Founder's/Operating Agreements, don't DIY it. Spend the money to get it done right.