They stated that commissions and fees, as long as they are in line with state and local laws and are reasonable, wouldn't be treated as interested party contributions.

I treat S8 tenants just like any other tenant.

You simply start treating as a rental. 

Taxes on stocks held long enough are treated as capital gains.

I know a lot of people that house hack with multi families but if cash flow and cost are a barrier and you don’t find room mates, look into a single family and treat every room as a “door.”  

Treat it like a lease with the option to buy with a non refundable down payment.Keep thinking creatively and shop your market every day looking for deals.

Treat it like a business from the beginning so they will take you seriously.

However, from what you've provided, it sounds to me like you would just treat it like a regular rental property.

Our Idaho properties continue to treat us well, paying us in both equity and cash flow!

My advice is to treat your balance sheet with respect and keep your short term debt items like LOCs at a minimum if you can.