Several methods come to mind for the ADU.   1) a regular or periodically adjusted flat fee (based on an estimated usage); 2) factored into the rent (essentially the same as a flat fee); 3) percentage proportionally based on sqft. 

The rating was based on the Executive Supervisor payroll and the cost of the Subcontracted work. 

Sidenote my Outer Banks rental is crushing which has caused me to shift my focus a bit from cabin to beach for the next investment, based on current market prices.

Here's what auction.com said about the transaction details: "Buyer will not be charged a Buyer's Premium for this property.If you are the Winning Bidder, an Earnest Money Deposit of 5% of the total purchase price or $2,500 (whichever is greater) is required.Buyer may receive a Special Warranty Deed or equivalent if Buyer is able to purchase title insurance without delaying the closing (title fees typically cost between $500 and $1500 and are based on the purchase price of the property).

I'm based in Virginia.

I got started by fixing and flipping properties here in Pinellas County and now I own a Wholesaling company based in Tampa but we do business all over the State. 

It isn't electrical work based on what you are stating.  

It only worth what it appraises for based on comps for 4 units and less.

I'm also a local CT based investor. 

Based on the popularity of the post, I thought it might be worth posting an update, especially because the outcome is quite ironic!