No shortage to choose from. 

I invested in Germany in self storage as there is a shortage there and the return is way more than what i expected

There is not shortage of sellers or deals!

My main question is if we are having a house shortage, rent control limiting rent would only make the problem worse?

Some articles I've read said Atlanta is a hot place to get into real estate investing, because there is a shortage of homes available, while others have said that Atlanta is a poor place to invest compared to other cities because of increased costs for labor, rehab, etc. 

We're in a housing shortage right now.

There's no shortage of demand for functional housing.

Remember to plan some vacancy into your numbers.Remember that in any economic doom-saying RE will be impacted like many other sectors, but that is a result of something much larger, likely impacting jobs which has a direct impact on the availability of quality renters.We're actually in a housing shortage right now.

I try to keep an I on the market but I know in the Philadelphia area there is a shortage of lower income housing.

There is no shortage of pay-mentor relationships available, which is something I have rarely ever come across.Is it simply the entrepreneurial spirit required for REI that causes a would-be mentor to realize his or her mentoring is a marketable product and therefore should not be given away?