Or is it purely an investment? 

You must maintain a unit as a primary residence - that keeps a lot of pure investors from completing an SB9.3.

So it's a pure expense.

But if this is purely an investment, the high maintenance fee is a major concern.Now, let’s look at what happens in the next 5 years:Refinance After 5 Years: Assuming 4% appreciation, your property value will increase to $1,216,653.

The "purely code" stables, I wouldn't suggest.

I continued paying what I had paid before, with the additional money purely going to principal.The recast to a lower amount was purely to reduce my committed monthly payment to a point that I could get my property to cash flow if I had to move out (job loss, etc).

Your primary home doesn't produce cash flow and is a pure expense.

“Jorge, this is pure gold—you’re laying out the exact playbook for maximizing every inch of a property’s potential.

Echoing some of the comments from others on this thread and adding that the LLC is purely for asset protection and limiting your personal liability. 

Be sure your lender is comfortable with this, as many fear giving folks primary loans for properties they view as having a high probability of being turned into a purely investment.