Start an MLM Business

Is to sign up or join a MLM business.
Advantages:
* The possibility of high profits with minimal investment.
* The possibility of having a business that can be administered at home.
* Training and education free or at minimal cost, provided by the multi-tier enterprise.
* Not required to have a lot of knowledge in business topics.
Disadvantages:
* Is required to have sales skills, be it ability to relate to others, to persuade them, be permanently motivated, have perseverance, etc.
* There are good companies multilevel recommended, but there are many others that do not have quality products, and they do not provide good care and training.
I’ve been told that tax liens are a low dollar investment strategy that can get you property free and clear. Can anyone share experiences or recommendations?