I recommend that you engage with a real estate accountant to ensure you set everything up properly. 

Multiple asks muddy the waters and make people feel as if you are nickel and diming them which you are.   

A lot of times its real estate agents or investor/agent hybrids that build youtube channels for their local market and CRUSH it. like multiple deals a month.

You can read a book and multiple books, but unless you are out there doing it (I.e. getting bids and getting contractors to truly get you an exact estimate) you will be far off from the numbers you want and may even lose money on the flip/rehab.The best advice I would suggest in my experience is that you should get into the line of work by either partnering with someone or working with someone on some projects prior to going into a flip on your own.

With the exception of 1 bedroom units, you basically have 2 options:-Oversized/commercial machines (potentially multiple sets)-Off site cleaning with clean spares on siteThe latter is almost always the most efficient and basically what hotels do at scale.

The only time you would see a fee related to maintenance would be a project management fee if multiple trades are required during a property turn. 

Any suggestions I should consider before engaging them?

I truly value that someone as knowledgeable as you would take the time to engage in a discussion with me.I’ve read some of your posts (though not all 1,000—I wish I had that much time!

Functionally, it operates as a 2-story home since the downstairs area has multiple windows in each room and plenty of natural light.

If it is multiple units but all the rents are different amounts then it will be easier to track.