Any ideas how to go about creating an LLC out of state if the application requires a physical in state address? 

I graduated with a degree in physics and I honestly look back at college now as a huge waste of time and money.

However, we are looking to attend a seminar not only to get inspired but to physically meet potential business associates and mingle with like minded folks.

The longer this goes on, the more ammunition your squatter has, so aside from the good advice above to get an attorney, file eviction immediately, move the car off the premises, change the title to the trust, etc, all I can add is act fast, avoid any physical or verbal contact with the occupant and use your attorney as the go between.

I would definitely like to link up with some investors, both who are physically located in the NRV and also those who invest, but are geographically separated.

While you can do that here, I typically look for physically distressed inventory (that typically won't qualify for a mortgage).

It's super simple and will save you a lot of money, physically located on 11th downtown if you wanted to go in person, it'll be quicker.  

Does the physical investment property double as the registered office for the LLC, and is all business mail simply forwarded to either an in state registered agent or my residential address in my home state?

During our stay, we were discriminated against due to our racial background and accused of smoking in the room we stayed in, and the hotel and its management refuse to provide us with physical evidence. 

To discriminate against any person in the terms, conditions, or privilege of sale or rental of a dwelling or commercial structure, or in the provision of services or facilities in connection therewith, because of age, sex, race, color, marital status, familial status, physical or mental disability, religion or national origin.