My cofounder & I just started a Delaware C Corp for an app we're building. The app is comparable to Instagram. We both work from home on our laptops. I work from Connecticut, and he works from Colorado. Do we need to file for Foreign Qualification in either state? If not, we'd like to avoid doing so to save time & money.
Please cite Connecticut & Colorado law to back up your answer.
Note: Feel free to also include the answers for other states.