Few out of every odd private company should finish each progression. For example, you may choose not to enlist your trademark with state or government authorities before you dispatch the business. Or on the other hand, you may not be required to distribute a notification of plan to work together.
Since laws change by state and by kind of business, make certain to check with nearby specialists to decide whether there are any extra lawful advances you have to take.
Here is also a site startup checklist you should consider.