That would be my first concern since it impacts potential income and your calculations.

That seems like it will have the biggest impact on prices and supply vs. demand. 

This means, for example, if you're self managing the property the appraiser will still add a management expense which will impact the NOI.Edit: I'm referring to buildings of 5+ units

This might be cool and help (slightly) when he sells the home but it had absolutely no impact on the appraisal.

RE is finally entering e-commerce so for all of us searching for “deals” I think it impacts all of our go to market strategies

If you own all your properties in your personal name, then any law suit that exceeds or is excluded by your insurance can impact all your other investments and personal assets.

However in this electronic age maybe that does not have the impact it used to. 

There are literally investor meetings somewhere in the city almost every day, so pick the ones close to you that you think will have a positive impact in your growth and get out there and network! 

Usually this transition has a negative impact on ROI. 

On top of that, if either you or your business partner have any issues that exceed or are excluded from taxes (say a car accident while intoxicated or texting,) then a legal action can impact the investment through a bad judgement or settlement.