Personally, I invest in properties in C-Class neighborhoods in my market (East Linden and Southern Hilltop), and they’ve been cash-flowing well so far.

on the one hand, if you're happy with it, and you believe in this market, and this is what you wanted, great. the fact that you're asking the question shows that you're being thoughtful about it.with that said, it sounds like you're into the deal for almost $90K out of pocket, and so if you asked me if i would put $90K of my hard earned cash into a property to get $175 month, the answer is no. 

I use Facebook marketplace as my way of marketing my rentals.

Hi Noy, Pittsburgh is a strong market for investors.

Here’s our OPINION for the Metro Detroit market (use as a template for your target area!)

Strong Potential for Long-Term Capital AppreciationGermany's real estate market has demonstrated a strong track record of capital appreciation.

I know this is also a National issue, especially in land constricted markets.

I avoid the multi-family market here, so unfortunately, I will not be a good go-to here, but I am confident you will find quality resources and help here on BP.  

I don't do any marketing. 2.

The issue I see is that market has historical appreciation below average (not bad, but slightly poor).