One of our investors utilizes nightly rental income in lieu of market rent on appraisal. 

Utilities, lawn mowing, locksmith, etc. 

(Dryers break a lot less than washers do.)Bobby - Do you have any utility company/home warranty packages in your area that might be worth it?

I'd love to hear more from others utilizing AirBnb on their processes.

Look for a small/mid size local bank that specializes in this, they will detail what you need, survey, building permit, architectural plans and a builder contracted for starters.Or when you're ready to subdivide/redevelop you just sell to a builder and have them split the lots and transfer title to you for your smaller lot, he keeps the others and let him mess with the utilities and building. 

Is today's market and interest rates worth me utilizing an FHA loan for what some people have referred to as "house hacking" and beginning an investor path that way?

If it's just for answering calls and trying to filter spam, you could utilize a call tree type service (Click 1 for sales, 2 for leasing) That typically filters out a lot of the automated spam calls as they can't navigate the menu. 

I'm simply planning to buy the homes in working class, relatively safe areas, fix them up well and furnish them and rent the rooms individually to make minimum 1.5-1.7 times higher than normal rents by including their utilities.

I ended up utilizing REIPro and really like it.

Their expense is simply another business expense like the utilities, taxes, insurance, supplies, HOA, etc.