I should’ve dug deeper and found out why it was condemned.

I hope that you find the time to delve into the REI path to the best of your ability!

I will share some great MFR podcast to start with, and you can learn a lot from them and Digg deeper. 

I am really looking for something both mobile and web friendly.Because I dabble in Homes and multifamily, I would like to be able to categorize both, but also categories more than one opportunity under the same person for follow ups, etc.Maybe even go a level deeper and have personal / work opportunities to remember.

However, if he does push for a 15 year loan; instead of walking away maybe you should ask for a deeper discount on the interest rate to make up for it. or for the loan to amortize over 30 years but the loan to balloon in 15

There are free educational resources on each of those to get you started, but as you get deeper, @Paul Moore's advice to pay for good education is spot on, particularly for the more active strategies.If you want to do those OOS investing strategies you named, pick one market.

Maybe I could dig deeper to look for opportunities to improve as you did.

@Johann Jells light regulation turns into deeper regulation...once govt hands go in they don’t go out.  

I grew up, still live and invest in rural South Georgia, where most all of the areas have decreasing populations but you have to dig deeper to know what type of demographics are actually decreasing.

Every market, every purchase, every SFR or multi-unit is going to be different, however, if the initial analysis passes the 50% rule and you're making money well then you can continue on.Once it passes the 50% rule you can dive in deeper to taxes, capex, etc.