Your last sentence is what this is all about, in my opinion.

I wanted a second opinion.

Hello everyone,I'm meeting with the seller's realtor to view a property in a suburb of Charlotte, NC and I wanted to ask you all what kind of questions you have asked in the past to find out good information about the area and property.Here are the points I already plan to hit:Why is the seller selling (Always a go to)What's your opinion on the rental market right nowWhat's your opinion on the real estate market right nowWhat would you say is the reason this home hasn't sold yet (28 days on market)Do you live in the areaWhat do you like about the areaWhat I'm trying to think of is more thought provoking questions that will get the realtor to reveal his true feelings about the area.The reason I'm prying is because it is a relatively small town with pockets of higher valued houses but there doesn't really seem to be any rhyme or reason. 

It really should not matter in that scenario if the $3k is on one card or spread out across all 21 in my opinion.

I just read an article that made a recommendation that I found weird and not a good idea, and want to get an outside opinion. 

That is extra in my opinion unless this is a really high end unit.

This article sparked my interest: "How I Built a $1.3M Real Estate Portfolio for the Cost of a 1-Bedroom in NYC"Any help would be greatly appreciated!

Any expert opinion is appreciated as we are not familiar with the city.

I'm pretty sure the place would pass a lead wipe test, just looking for opinions. 

You didn't ask general opinions about whether you should form an LLC or not, but in case that's still in question, here's why I didn't go the LLC route (I also live in CA)-https://www.biggerpockets.com/blog/2013/08/17/rent...Hope that helps.