One extra stream can flip negative to breakeven.Underwrite both LTR and room-by-room/MTR once you move out.

As an entrepreneur, I'm always looking for multiple revenue streams. 

. $700/site sounds reasonable if it’s a high-demand area, but if there are already parks nearby or seasonality hits harder than expected, that income stream could lag.

Since you already have equity and the ability to build more units, you’re in a strong spot to create scalable income streams, and with rents at $700 per unit you’re hitting solid numbers for your basis.

The CAP rate and cash flow stream, I will back into the price and Metrics, I'm willing to pay for the property.

For example, if a client has multiple income streams and is also a 1099 worker, some lenders struggle to process it, while others may take two weeks.

I pull my lists personally using prop stream or just the tax records using my NJ license since it's free (Remine).

If you want another revenue stream of listing homes for others then it makes more sense.  

If you are looking to house hack a multifamily on Long Island, I'd recommend sticking to the areas with the most 2-4 family inventory:- Huntington- Glen Cove- Valley Stream- Lynbrook- Lindenhurst- Long Beach- Babylon- Patchogue- Elmont* To name a fewIf you're looking to house hack a single-famiy on Long Island, you'll have plenty of options and you can also aim to target Hi-Ranch homes and/or properties with full basement or other potential ADU spaces.All the best!

I have rehab (flipping) income, wholesale income, and rental income streams from multiple properties.