You may have saved yourself some grief, because your "rough area" meter was on high alert.

If you have been lurking that long, then you know I have a great BS Meter, so I just don't go there with some hair brained idea unless I really need to. 

Has anyone noticed any substantial change in response rate when shifting a mailing campaign from 44 cent first class stamps over to the metered option?

Peoples' B.S. meter is pretty sensitive when going through the mail.

I would go with the 1st option, but it's going to be hard to press someone in court to pay the bill because they can say they did not use that much utilities, without sub-metering, you would not have any proof on who used more than the other tenants, but for the most part tenants will pay it.I guess if you wanted to stipulate in the contract that the lower unit would pay for the entire building you could, it's a contract after all..

If you were to construct a fine triplex property with a limited land area, say 300 by 300 square meter, how would you design it?

That, and change the locks, would do it.To do it "right" (or at least not be forced into paying the 2fl tenant's utilities), I may need another meter or two, another electrical panel, and possibly a boiler - I don't recall the current utility configuration.

I've run analysis using Rent-o-meter, Zillow, and Trulia.

I was just curious if anyone has feed back on the 2 different paid versions of Rent-o-Meter (which one you selected and why).

I don't think I could recoup this cost by simply raising the rents, I'd rather have each unit on a separate meter.