Hey Steven,Here's a breakdown:Hot Lead - A lead that wants to sell  & are looking to sell within the next 60 daysWarm Lead - A lead that wants to sell but after a specific period of time Cold Lead - A lead that wants to sell in the futureRetail Lead - A lead that wants to sell but only interested in market valueDead Lead - A lead that does not want to sell and would like to be removed from your database We don't believe in forcing anyone to sell their property, once we determine a lead is dead then they are removed from our database.

But the idea of just reaching out to and relying upon random investment advisors -- with no centralized database of prior complaints or performance to rely upon -- is incredibly concerning. 

I have recently hired an administrative assistant to help with acquisition paperwork and other things.

In other words, the Social Security Administration would deduct the rent from the tenant's check and deposit it directly into my account.

https://www.whitehouse.gov/bri...FACT SHEET: Biden-⁠Harris Administration Launches Coalition of States and Local Governments to Strengthen Building Performance StandardsJANUARY 21, 2022•STATEMENTS AND RELEASES

What is the best database or software for researching US commercial and residential real estate trends over long periods of time?

This is called passive but there is some administrative work occasionally. 

I have a large database of many thousands of investors or more.

Greetings:Well ... someone has the legal right to dispose of the property, and without heirs, there generally needs to be some sort of application to a Court of competent jurisdiction to have a person appointed in order to represent the assets of the decedent.NB: In NY, you would petition the Surrogate's Court to be appointed an Administrator, based upon your degree of kinship to the decent. 

I use a service kind of like a remote back office to handle most of my administration needs and or maintenance coordination.