The key is getting systems in place.

I'm 27, from the Northern Virginia area and I work in IT as a Linux Systems Administrator.

I will tweak these as I get deeper into underwriting a property, but for smaller properties this system works great. 

There's money in both markets, it just depends on how well your system is suited for each one.  

I have a Takagi gas tankless that i installed in my personal house, 15 years old, and still runs like a champ. one thing to consider and is recommended with Tankless heaters is to get a whole house filter water system, this keeps parts inside from corroding or getting ruined by hard water.

A rental versus a sale unit might need different finish out.I would figure out what that subject area would support your direction the most. 

I don’t want to read through hundreds of posts to find the answer to a simple topic such as “What kind of security camera system do other investors like?”

Set up systems much like a production line. 

Hi Deondre, memphis Invest and Spartan Investments are both reputable... make sure you have a system for analyzing deals but both companies have good reputations.

One thing I may do, is get a few quotes from contractors on roof conversion cost versus flat roof replacement.