The thing is, I work in a construction related field and am unsure about the future of my job.

Should I wait to Summer to see how construction prices will react once the market dips?

Added a new build and created two from one building, out of the three preexisting single family homes: Completely updated and performed all maintenance from home inspections and discoveries as we constructed one new build, separated two existing, and completely remodeled another existing.

My issue is I don't have much more in my construction reserves to budget this extra renovation.

I'm 34, i've been in the construction trade all my life, i'm a very skilled electrician of 16 years.  

Gary helps everything make sense by reverse engineering the goal of $1M income and getting that goal chopped down to actionable and measurable steps.The E-Myth by Michael Gerber- Highly recommended no matter what type of business you’re looking to begin - RE Investing, construction, development, property management, etc.

But yeah, I assume most of the contractors have been busy with new construction that they don't want to take on smaller jobs.

It depends on where you're considering in Brooklyn, and whether you only want to purchase an actual brownstone, or would settle for a 3-family house made out of different construction/facade.I'm seeing legitimate/usable 3-families about as far north as Sunset Park which has a lot (relatively) in this price point, maybe Greenwood, but the inventory in Park Slope/Gowanus is either a 2-family or is very small as they're much closer to $1000/sf.

Just curious how the market (coronavirus impact) for the niche market for high end flip/ new construction now?

I’m going to assume you are looking at a 6 unit or less.  365 days to purchase, get the permits and have your construction crew lined up might be tight.