There are some great articles on BP on how to get started as a successful agent.  

This is a free meeting – there is no charge for you to attend – and you are welcome to invite other investors, landlords, and those who are new and/or exploring the possibilities of the business.

I have learned a lot from just reading a few articles a day and last week’s webinar rocked (my first webinar)!

I look forward to exploring all the ressources available.

My logic behind that is i would be getting more income with more tenants(still exploring this thought, i do see some flaws as having an overcrowded property, tenants expecting the market value of the rent being split between all persons living in the property, is this legal?!?! 

Brandon Turner wrote several really awesome articles about renting, evicting, tenant screening, etc. https://www.biggerpockets.com/renewsblog/2013/01/2...https://www.biggerpockets.com/renewsblog/2013/01/0...https://www.biggerpockets.com/renewsblog/2013/02/2...https://www.biggerpockets.com/renewsblog/2015/05/2...

Hope you find the articles and information helpful. 

@Michael James BrooksI wrote a pretty extensive article for BP on the issue of whether or not you have to pay self employment taxes upon the sale of your property.

Reasons, there are not a lot more building on the market than you would expect.Below is an article I came across that may give you some more insight about what is going on in the area.http://www.nbcphiladelphia.com/news/local/Millennials-Drawn-to-Northwest-Philly-But-Will-They-Stay-259816701.htmlGood Luck

Some teach...I think "retire" is a term that needs explored.