But they definitely heard a story from another person that never owned one about how expensive it is. 

The person had something of an accent.

If you intend to do the rent by room strategy the ideal situation is for each guest to have their own bathroom or, at the most, to have to share it with one other person.

I personally like to stay in mine for 3 days atleast while I setup to know my properties more intimately and to work out the bugs which would be problems for guests.

I've closed 3, so definitely not the most experienced on the Commercial Side, but in my experience a lot of these Commercial Lenders want to see a Personal Financial Statement.

I'm curious to see how this plays out for future reference

I am not sure what "tax advantages" you would be referring to... they are virtually taxed the same. 

The reason I am selling the Condo is to pay off some personal, and unexpected debts of about $18,000 to decrease my DTI to help me qualify for my Dads VA loan (they want to move to Texas), which is a 3BD 2BA single family home. 

Just wanted to bump this as I am going to start valuing my small property management business (maybe 10 doors total) to include it into my personal net worth calculation.

The second branch of the site will be a platform to create a personal web page that will hold all of the agent's social media link (kind of like linktree).