We're using REI Print Mail for the DM campaigns, and we've been utilizing the lists they can pull.

With current inflation rates, you are theoretically losing money the more liquid you are.In the long-term, I highly recommend utilizing your VA loan to snag a 2-4 unit MFH in a metro market.

My objective is to purchase a duplex/triplex to utilize the house hacking method.

I'm particularly looking for information on Utilities, Internet for a 4-bedroom property.

That leaves the low property tax, no income tax, cheap utilities, no weather related expenses, tile roofed, stucco sided, median property age under 20 years, cheap insurance and solid foundations Las Vegas properties with lots of entertainment, very cheap flights and a good quality of life. 

The power and all other utilities are off, grass not cut (we had it cut twice) and cobwebs are covering all points of entry.

You should utilize leveraging when you are planning to buy multiple properties, since you will have a much greater cash flow (if done correctly) with multiple properties (even if you have a mortgage on all the properties) than having one property with no mortgage. 

We then utilized his actual paid Cost Segregation analysis.

It certainly takes some time to get the experience, but once you do, utilizing the leverage from the bank and from other people allows for great returns.  

Who's going to go to all the bother of building an ADU unless it at least covers your substantial taxes, insurance, and utilities on your main house?