@Adam Silverman i'll just add one short item as well.

Most list providers seem to focus on addresses and mailers with phone numbers as an add-on or after thought.truepeoplesearch actually does a decent job of finding phone number bit it's  tedious to uses.

@William White  before you part with your hard-earned cash, add one more book to your reading list:  www.BiggerPockets.com/syndicat....  

I would add one more:- I prefer a pMC that has pop-and-mom vibes, very practical and very fast moving, there're just large Pmc outthere that only care with endless software upgrade while overcharging us for repair due to their heavy tech uses.

There are a ton of add ons that you can use to connect to all your other applications that you might be using like Gmail quickbooks, or dropbox. 

Add one later if you want.4) While you don't necessarily need a channel manger, automating the guest messages is a HUGE reduction in workload. 

I meet with my insurance broker regularly to review all my existing policies and see if they still make sense and to add on new ones.

Do I just add on an addendum or amend the lease itself? 

I might also add, on the debt side we are using private and commercial construction debt, with very standard MF debt structures. 

Some require add on's like mortgage insurance, FHA insurance or even the VA funding fee or lack thereof for service disabled veterans or points, but all of those nuances/purposes bring with them very specific guidelines.