I think STRs are scalable but scalable in specific markets. 

There is not a good scalable property management solution that I have seen.

But they reach scalability and buy buying lots that I would could buy personally for 100k for one lot.

With more control, with NEW built unit's, with more scalability...... 

@James FraundorfHospitablePriceLabsSchlage Encode LocksRemoteLock.comAt 4 units, you can get by with much less, but we hit a couple scalability points which caused the need to beef up systems.

As you start closing deals, you will need to reinvest your profits into mailing lists and other scalable activities to grow your business.

I did this because of a number of reasons: better tenant profiles, better returns, scalability, ability to execute more complicated renovations, local expertise, etc. 

Some deals are accessible to sophisticated investors with experience in real estate.Pros of Investing in Real Estate Syndications:Scalable Cash Flow: Syndications can offer better scalability of cash flow compared to managing individual rental properties, providing potential for higher passive income.Tax Efficiency: Syndications offer opportunities for cost segregation, allowing passive investors to accelerate depreciation and offset passive income.

As much as I wish true tax and legal services are scalable and can be mass marketed, experience has shown that is seldom achievable.

You might be having somewhat initial success but it's not likely really scalable over time in varying jurisdictions with different laws on the books.Everything these days is more about social media and or snail mail.