I recommend to keep driving for dollars and pursuing vacant properties....then use a skip tracing software to find the owners.  

And both values must be calculated using software so it isn't any harder to determine their values (besides deciding your safe rate and reinvestment rate).I appreciate the importance of IRR as a form of training wheels since the concept is already difficult to grasp; someone learning shouldn't try to jump straight to understanding MIRR.

@Travis Rasmussen Apparently, neither have any other folks here :)OrbiRental is property management software that competes with Guesty, Hostaway, VReasy and the like... 

Are there any apps or software you wish you had, and if so for what in real estate, or is everything perfect and suits your needs?

Cash buyer's list has grown beyond my primitive "cut-and-paste" methods.  Which list manager is reasonably priced and easy to use?  What other features should I be seeking?  We are considering Aweber, Constant Contact...

You can get good file encryption software for very little cost.

I'm wondering if anyone has knowledge and/or experience with a cheap software solution for a small HOA (26 units)?

I've been focusing the money that I would be using for investing to pay off credit cards from school as I graduated 8 - 9 months ago and have been working as a Software Developer ever since.

I would like to continue working as a Software Engineer and build a portfolio to pay for my children's college in the future, take nice vacations, and pay my current monthly mortgage. 

@Paul Wakim there are actually a few software applications already out there that do what you just described.