(source below)I ran these numbers on my own portfolio (of 9 units, 4 properties, mostly updated with Low CapX) in Green Bay, WI and my tenants are paying on average $1.08 per SQFT and moy cost is $103 PSF. 

Buy and Hold: Norfolk (Best Cashflow Potential), VB (Townhomes tend to work well, Green Run is a great area for cashflow), Chesapeake, Newport News, Suffolk (Less Military presence which is why i would put last.)STR: VB (in the proper zones if you have the money $850K+), Norfolk(Ocean View area specifically but have to watch out for the AICUZ restrictions), Leave the restPart of that decision process is distance to that I would need to travel to deal with rehabs, I hate dealing with the tunnels so I would almost always pick places on the peninsula last since I am based in Chesapeake.

Green buildings not only have lower operating costs but also offer health benefits for occupants.Renewable Energy Sources: Incorporating solar panels, wind turbines, and other renewable energy sources can significantly reduce energy costs and appeal to environmentally conscious consumers.Smart Home Technologies: From smart thermostats to energy-efficient lighting, smart home technologies help reduce a property's carbon footprint while providing convenience to occupants.Investing in the FutureInvesting in technology and sustainability is not just about being environmentally responsible; it's also a smart financial strategy.

Pool green? 

As @Jay Hinrichs mentions whether a piece of land is land locked (no street access without crossing other land) would be a  matter of a survey or check of tax plats.

Just técnicas from the David Green on his books Bua also I have experience on flipping and a extensive Construction career, specifically on out of state projects and logistics, but the be completely honest,  First time with BRRRR!!

Quote from @Jonathan Greene: I don't know what you would be pitching at 20 years old to get money so listen to @Chris Seveney.

Cross is good if you want to stay focused on Suffolk.

@Amanda Green, It's a cool building with lots of potential. 

Merchants Bank MN See Pavel UshakovPenFed - max 3 other properties, 89% LTV Regions- yes HELOC but no LOC SCCU Florida 70% LTV, 6.25% interest only, not LLC Sound CU "non-owner occupied HELOC, capped at $150K and interest rates are prime + 2%, 3% or 4%, based on credit, not to exceed 70% ltv.”S&TTCF BankTD Bank TIAA Direct was EverBank Tower FCU, all states except TX, max 45 DTI, green card ok.