Is it best to simply increase rent by a fixed amount (e.g., $700) to cover this, or are there other strategies for handling utilities in this situation?

To answer your question, I would simply search google or even Bing AI chat and ask "short term rental regulations in ___" fill in the blank with the market you're searching in.

I simply take the 2-3 day no-fee transfer from these platforms.

It is a sure thing that you will have success simply based on your introspection!

Arbitrage is simply transactions.

You simply can’t ignore the risk of investing in an area that you’re not intimately familiar with.

Leave as is and simply provide info for the nearest Laundromats. 

Financial freedom goes beyond simply replacing your current income—it's about sustaining your lifestyle for life.

And there's been MANY times I get bookings that come through for same day check-in and they "pay" with an invalid card but because Booking simply collects and passes along the card number, if I don't notice the card declined in my system they get a check-in code and I'm chasing people down for money.

You are honestly way ahead of the pack already simply by being willing to start learning about this topic in your early 20s.