Investors way more experienced than me suggest building a portfolio of high quality properties that produce well instead of a ton of low quality under performing properties. 

Are your units separated well?

Of course when the risk free rate is sub zero, those with capital are urged to deploy it (allow known as quantitative easing).Of course there are many other factors like operator experience, specific market, specific deal etc, but generally this is one of the largest factors.

Hey Min, Can you send me a list as well?

Explore my personal favorites, Set For Life by Scott Trench or The Total Money Makeover by Dave Ramsey, for invaluable financial insights.3.

I'm a "newbie" by definition with one duplex under my belt but would be interested in meeting up as well to share stories and explore opportunities.  

The majority of our properties we plan on holding until and well into retirement.

Some say it’s possible to implement this strategy in Germany, while others claim you can't, due to regulations preventing the sale of mortgaged property before 10 years.There's a lot of confusion and misinformation, and no one seems to have solid information.This strategy is well-documented in the USA, with numerous videos on YouTube.

Does it makes sense to set up an LLC, fund the LLC with the $$ and get a loan through the LLC?

A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.