You would invoice yourself and your business pays you the equivalent to what you would pay an event space.

Just put up walls and turn the space into usable space.

There is an additional uncovered parking space adjacent to the house which was intended to be reserved for repair persons, contractors, but they always street park. 

I'm going for either a duplex or a triplex, living in one of the rooms and occupying the remaining spaces.  

In the lease for subletting or assignment there is spaces you can charge for fees...

Hi Zack,I'm trying to figure out exactly where your closets are but for "cheapest" options, can you shift your furnace room south and make that current space a hallway to enter bedroom 1 and the "dining room/bedroom"? 

I've been searching for an answer to this but have been struggling with finding a clear and concise way to ask this question. I'm a new homeowner looking to house hack (rent out the rooms in my home individually), and...

I think it's pretty clear from your post that you are passionate about getting in the real estate investing space, but that you haven't done enough due diligence to warrant a purchase yet to be safe with your money.

How do I calculate the corresponding reduction in rent for the reduction in storage space.

For an SEC attorney you can look nationwide for one of the bigger names in the syndication space.