I like the idea of doing all your research online for the convenience efficiency and the ability to keep records seamlessly .

I like the idea of being able to fire them with a 30 day notice.

Hi,I am owning a nice house currently worth 600K (clean from any mortgage or debt) and finally understood that sitting on this kind of asset is just a monthly waste of money.As I am completely new to the real estate investment business, I am wondering whether it would be the right way to sell my current house and buy several assets for rental or keeping this and getting a loan/mortgage and buy, probably, fewer assets.I am sure there are many answers to my question but I'd really appreciate to just get some kind of idea of what the right direction would be.Thanks in advance for any replies  

In 3 9-hour days, however, there isn't time to go into much detail on any one topic.

Any ideas would be greatly appreciated.

According @Dmitriy Fomichenko's reply at https://www.biggerpockets.com/forums/51/topics/119..., we could both contribute to the same Solo 401k plan, but our funds have to be tracked separately.  

If you've learned the terminology, learned how to run the numbers (accurately), figured out a strategy that works for you and have a realistic idea of the rental rates in your market, then just do it.

Sadly, it won't help my credit since there is no mortgage on it - and it doesn't even appear on my credit report.Thanks for all the good thoughts and ideas!

It will give you an idea of how your home compares to other options tenants have.

Sounds like you were sitting on the idea for a while before you got started.