For example, some mortgage brokers will initiate several loans and then sell them as a package of loans to another financial institution.

Where is my rent relief package?  

Distributors, donation collection companies, shipping/package delivery firms, churches, etc.

Put these three thinigs Comps, professional pictures and a copy of signed leases into a package for your appraiser.

I won't be sharing the specific details on this public forum to protect his privacy but I believe the elements of his story will ring true across the market and it really says a lot about the potential for fix/flip investors to adjust to see greater returns. 

2) How do you deal with mail/packages?

Also, I had refinanced the package of 3 condos buy then as well. 

I have received calls and emails (thankfully not daily) from wholesalers and "brokers" trying to either buy properties and "have buyers lined up" or are sending my CBRE packages with the CBRE logo covered up.  

Putting together a package and supplying information to essentially get pre qualified/qualified for a loan takes a lot of time even if you are organized.

I have 2 duplexes (B- Class) I purchased essentially as a package (same owner, identical and adjacent, but two separate properties) back in May 2020.