But it's rare for people to succeed without both aspects working together. 

I would like to know if anyone has a good spreadsheet or calculation method for determining how many properties(or a total market value of properties)  and at what rate or return I would need to purchase over the next 10 years to achieve a defined income goal?

Have someone qualified look over the numbers with you if you are at all in doubt.The reason I suggested looking at your situation in that manner was to take the emotional and inertial aspects out of the equation and narrow in on the pros/cons of keeping/selling your personal residence.  

I don’t believe they’re a TK company; however they have helped to manage every aspect of my acquisition, repair, and management.

This is a topic that gets tossed around a lot in the investing world, but I personally have never actually seen/read a real in-depth discussion on this aspect of real estate investing: Should you (and why should you) bring in a qualified, professional interior designer onto your investing team or project for a flip or flip and hold?

Are they user defined and automatic, say if a late charge is imposed on the 3rd will the software auto input and require the new amount.Thanks in advance.

That is why it is important to define how long a guest is allowed to stay in a unit (a term less than 30-days and then stating after that period they must complete the application process and be accepted). 

@TomO11 thank you so much, I definately will!

Do the aspects that you love and can do cheaply.It sounds like you enjoy the carpentry.For me - I like tile work.

MikeI definately agree with you about the Gurus; I am very sceptical.