I’m not too keen on the fund and grow model operating solely on business credit but it does seem the most direct way to utilize the cash I have on hand and acquire enough operating capital to get into decent property.

Closing costs are likely ~2-3% of the purchase price as a rough estimate and your holding costs will include your PITI/utilities at the very least. 

Shared utilities or metered separately? 

This is exactly what we are doing now, we are utilizing our wholesale skills to find our first flip.

But, it doesn't cashflow well because rents are low (just raised, but the properties are odd and don't garner top dollar) and the utilities are high (expensive to re-meter; owner is responsible for expenses).

We are no longer having to float the mortgage and utilities at this point, and won't have to for awhile. 

This option would give me a monthly income of 2,700 per month.All loans are around a similar interest rate it looks like. (5%)Amounts are after utilities, taxes, and all other expenses. 

Rents, property tax, utilities, etc.

You can also call utilities to show that she's not paying those and moved them out of her name.

Any NH specific recommendations for: timber companies or mills, creating roads, connecting utilities, surveying and marking land boundaries?