Quickbooks and other generic accounting software can be a bit messy and maybe even scary as the learning curve can be quite high in order to get all your data in in a neat and professional way. 

The lack of any substance or value in your post, outside of generic comments of approval, leads me to believe that this is not in fact, a genuine review of HRRE (not to say that Jack or Jeff aren't astute businessmen). 

What I'm really looking for is a way to build a solid retirement plan and create a supplemental income.

My long term goal is to take early retirement from my company within the next 2 years, and buy a couple of multi family properties to supplement my income.My situation is that I currently live in CT and have a get-away place in New Hampshire.

Can I get a supplemental loan?

I'm carefully studying the Denver zoning map today :-)Generically I think I need to stick with: MU, MX, RH, RX, TU for multiple units. 

Thank you for the article. i do not see a negative in accepting those sources as proof of income, if you look at and think about the list of incomes, they are pretty much all guaranteed sources of income and supplemental, so why wouldn't you include them. usually you can base that as a percentage of their income, if they fall short and do not pay, you can usually evict them saying they didn't pay based on the other percentage of the income that they are responsible to cover.

If your tenants are getting in contact with you directly at all times, put in place a process that puts it into a system (Email to a generic address for your business) That way you or your representatives can handle the issue.

The appreciation on this duplex has been enough to be able to retire (or supplement a deadbeat siblings "retirement").  

Thank you all for your responses, I will take your advice & send a generic yellow letter.