I know what makes a succesful theme park, I just don't know about how it works to build them.Hope you can help point me in the right direction for webinars, articles, courses, knowledgable people or anyone who has done this before.Regards Daan

There are are plenty of articles online about side hustles that you can read about others experiences.

You can always go back at a later time and amend your articles of incorporation after consulting with a lawyer. 

This is random but you wrote a really good article a long time ago on bigger pockets about creating a scope of work: https://www.biggerpockets.com/...I really like the checklist form you created for the SOW.

I was thinking to just give them a Zillow market analysis article of the areaSponsor Financials - If I am buying this myself can I also be my own Sponsor for the property?

But I first recommend you read this article I wrote for Bigger Pockets titled How to Invest in Real Estate Before Turning 21.

I am reaching out to ask if anyone has explored avenues of building or remodeling a structure into a Cohousing situation here in SD?

You could explore "USPS Street Addressing Service," the UPS Store has one, or you could use one of the virtual office services that have a physical location.

We feel that we have been given a great opportunity to get started investing in real estate with this chunk of money, but what other options, if any, can we explore so we don't need to sell our brand new home (which took 15months to build!). 

Here is an article I found on the topic.