I checked the Better Business Bureau for complaints, I checked the NJ State Attorney General consumer division to ensure he was licensed, I checked every reference he gave by visiting sites and speaking with the homeowners. 

Or like California a RE Broker like myself or Consumer finance license all which are regulated by the state .

It’s incredibly messy and time consuming.

Where are getting that consumers pay three times as much in commissions as other developed countries?

It also allows you to search 400 property and property owner consumer fields, in addition to being a driving for dollars tool.

For most, this isn't a realistic option so they update some of the most important regions themselves and copy the data from other providers where they don't have coverage.This is a big problem with these big consumer-grade real estate analytics platforms—you don't really know the source of that data, its frequency, etc.

If you do a furnished LTR you will still have to worry about your furnishings and possibly consumables/linens if you plan on providing that sort of thing. 

I have experience building my own DTC consumer goods type sites so I was planning to build my own.

There was an article published in Sept 2024 that showed the average consumer would save over $10,000 by working with a broker vs a direct lender over the life of their loan. 

This initial negative equity position consumes the initial cash flow.  2) the addition of the adu makes the property multi family and likely makes rent control apply.