To be fair, judging by the “ask about the guru” posts on here, many people might not realize this.

Basically, Hey, I'm a new investor that thinks investing is all rainbows & unicorns, so can you hold my hand and give me the best advice & deals that's taken you a career to figure out?

There are quite a few people doing Sub-To and owner financing opportunities. 

I’m unsure if changing out the filter is required even if next people don’t want to spend money on replacing the filters. 

Welcome to BP Steven,These forums are a great place to learn and meet people, whether you're just starting out or you're a seasoned investor.

Too many people treat agents like butlers and door openers, thinking they are all the same because they have never met a good one.

Many real estate people are grow, grow, grow using debt and that strategy does work.

If you have internet connection onsite the meter has 5 year battery and you can read it remotely.The old versions basically had an outside meter in a lock box in parallel with the water line.  

It's dealing with people; usually upset people, and managing a lot of things at once.

I also have experience managing remodels, contractors, subs etc and have even taken some community college trades courses (framing etc) so I have some basic trades knowledge.