Can the top aggregate be sold.  

It's like the Zillow Estimates... it just aggregates the data from across the board, which is a good start, but it won't account for nuance and detail (e.g. a corner property selling for a 5% premium compared to non-corner).

Also that aggregate losses can exceed 25K over multiple years and carry forward indefinitely to protect future “passive” income.

Do they pull reviews from the Short term rental aggregators?

And this is the aggregate.

My client owns 3 SFRs and a commercial building for their business (in an LLC, used by the business but with personal guarantee). They were told that since they will be purchasing a fifth property with a Jumbo loan (w...

Your best bet might be to find a private fund that aggregates money and lends it back out to real estate investors.It is worth adding that this is not a tax-efficient way to get involved with real estate.  

It could be multiple properties whose aggregate value is greater than your net sale. 

We don't have aggregation of rent and it depends on location.

Hello Francis,Skip tracing services charge fees because they aggregate data from multiple sources, often including private databases, public records, and proprietary data, to provide accurate and up-to-date contact information, including phone numbers associated with a property.