If not, on your subsequent mailings, do you maintain sending to everyone on your list?   

Acquisition phase, maintenance phase, disposition phase (if I'm remembering the terms for the 3 parts of the cycle correctly).If you're early on in career and looking to increase portfolio, should cash out and buy more with relatively high leverage (while being sure to have solid cash reserves on the side of course).If you're middle career and looking to just maintain portfolio and don't need cash flow from properties, then focusing on building equity in existing properties by using cash flow to pay down loans make sense.Then end career dispose of assets and the sweet equity you hopefully built up by selling outright or owner carry or whatever.I personally would cash out and buy more with leverage, but that's someone in acquisition mode bucket talking.

I need to learn by doing, not just studying.  

Do you have any study tips that might help me retain all this info? 

Study the area and the market.  

It's easy to jump ahead to solutions and not do the hard analysis of studying the problem first to arrive at a solution that correctly answers the question.  

I want to try to maintain the lifestyle I have accumulated while working my job (that I really don't like anymore) by bringing in close to my current salary.

I'm a newbie like you but I've been studying for a couple months now and will be closing my first deal soon.  

To me ,the row homes are even riskier , since they have common walls , how your neighbors maintain their structures can have a direct impact on you . 

Anyways through which I plan on taking on flipping houses as well while still maintaining buy and hold strategy.