Pro: In addition to MLS access your brokerage might provide access to other resources such as detailed online assessment data not available free to the public. 

The address was submitted to their red book and now shows up online as official address when I try to ship items from Amazon or similar websites.

All your first set of questions can be answered by looking online or calling several local competitors.Your accounting questions though, show such a lack of basic knowledge that you probably shouldn't be doing this until you have more experience.

I keep reading different things online.

When I started, I first wrote out my 3 main objectives for my portfolio, which was cash flow, appreciation, tax benifiets in that order.

My PM ordered the microwave online and is telling me the microwave and labor was $130 more than Lowe’s and won’t account for the difference.

Look at a few each day online, or catch up with an agent who knows their stuff and househacked to give you some pointers. 

This tool lets you clean up and remove objects from photos.

Remember, no system is perfect, so avoid the temptation of constantly chasing after the next shiny object.

Marketing homes during this period involves creative strategies, such as seasonal staging and targeted online promotions, to attract buyers even amid holiday distractions.