I like to monitor top 10 lists and compare the in-migration numbers.

As are cellular towers, fiber, the internet, the local gas station, vape shop, computer monitors, keyboards, search engines, and just about everything else you can imagine.  

Some items I think should qualify, such as: time spent monitoring rehab progress/talking to contractortime spent talking to vendors & placing orders time spent talking to PM/CPA/attorney regarding my properties;time spent reviewing statements/invoicestime spent preparing mortgage application,  tax filingtime spent writing contracts with contractors, PM, equity partners etc Some items I'm not sure.

I have a smart thermostat installed so I can monitor the usage also.

How are you going to monitor the home?

To maintain profitability, it's essential to carry out in-depth market research, closely monitor remodeling expenditures, and do due diligence on prospective properties.Preliminary Advice for First-Time Investors:Become knowledgeable: By reading books, listening to podcasts, using internet tools, and connecting with seasoned investors, you may keep up your real estate investment education.Start modest: Start small and increase your investments gradually as you acquire confidence and expertise.Network: Make connections with other investors, real estate experts, and mentors who can offer advice, encouragement, and insightful perspectives.Make a good plan: Make a thorough investment strategy with precise objectives, deadlines, and exit tactics.

This will enable you to more efficiently monitor any financial activity linked to your house hack.Create forms for a rental agreement that spells out the terms and conditions of the renting.

I would also like to get one of those devices to monitor for smoke and noise (not sure what to get for this either)  What recommendations do you have for a deadbolt keypad that I can change out the code for each new guest?  

Bathrooms, bedrooms are not being monitored. 

Where do you personally go or what do you specifically review when you're monitoring or looking for emerging markets?