As others have mentioned, the note-investing industry is too small to support numerous listing sites that can be profitable from simply transaction-based revenue.

I have been using innago and manually entering every expense for 11 units, huge waste of time, but I am a detail freak and like to know profitability by property.

I believe it was an increase of profit of around $18,000 more than the original listing price.

Cosmetic flips and short-term rentals can be profitable, but regulations and online marketing are essential.

I'm sure there are some profitable syndications you can invest with but it's tough for them right now. 

This seems like a potentially profitable strategy given that the factory is supposed to employ 6500 people with good salaries.  

That is not requirement for profitability but I certainly sleep better at night. 

People starting out usually are more interested in cashflow while someone already wealthy may be more interested in appreciation plays and debt pay down as a means of long-term profit with tax advantages.Personally I disagree that "appreciation" is what makes you wealthy.  

Idea would be to sell off the low ROE properties and funnel the profits into paying down those that cash flow better. 

The issue I personally see is that we (Realtors) meet with sellers, show the data, and sellers tell us "Yeah, but the market is hot, so we want to maximize our profit, let's go $50-75K over your suggested price and see what happens.