Does anyone have any recommendations on people or suggestions on where I should look to find credible/reliable investors that have an appetite for a high flow of deals?

As soon as rates rise, or more importantly, as soon as the government can no longer "suppress" the rising inflation.

You can do it.Stay Hungry - The laborers appetite works for him; his HUNGER DRIVES him on.

During due diligence I found that in order to make it a 5 unit again, I'd have to file multiple use variances and install automatic fire suppression ( sprinkler systems).

Investment property lenders have a wide swing on rates right now depending on their appetite. 

What is your appetite for rehab?

With an intense market and the appetite for investors, many 4 plex sellers are not accepting FHA loans.

If not you're going to need one anyways and they can go over lot of this.1031 rules in general can be interpreted differently depending on your risk appetite, but a lot comes down to intent.If you need a intro, I can help and share my experience of how I handled a similar situation...

I also learned there's very little appetite for refinancing properties under $100K.

However, I don't know what the market's appetite is like for primary homes with solar.