Buy a new build in DC (5/4) for Short Term Rental Purpose ?

[Reggie Monroe]

I purchased my first multifamily home a year ago & I'm getting excellent cash flow due to the low mortgage rate I received. Now I'm ready to buy home #2 with the ultimate goal of using it as a short term rental.

Recently I came across a beautiful SFH New Build in Washington DC for just under 600K. 5 BR/3.5 Bathrooms.

My reason for purchasing is to rent it out on Air BNB, hoping to make great returns.  My monthly mortgage payment is estimated at 4K.  I'd hope to cash flow 10K+/month.  

Does this house sound like a good investment or should I buy a smaller home in hopes of getting a better ROI?