on form schedule E 2012, part I, looke like something is new:1. it says: "if you are in the business of renting Personal Property, use Schedule C." what's that mean?

Carolina E I'm not certain I've heard of that before.

The last one I built was a 3300 sq foot center hall colonial with 9' first floor ceilings, a wood burning fireplace, 2x6 exterior wall construction & R-19 in the walls, all low-e glass...it cost me $106K delivered & set, on a new 31'x52' foundation that cost $25K.

money does.You say you've called and e-mailed with no response.

E & O insurance is a topic that elicits two responses: I don't like it, or it's necessary to protect my business interests.

The main thing is just to keep up with the paper work and fax/ e-mail everything.

E. rental property that generates investment income would not qualify me).

If so, should I contact them by letter or is e-mail/fax better?

You should not have claimed the credit until you did move in.You should amend the 2010 return to pay it back AND you should fill out schedule E which you should have done anyway for each year to report the income.It sounds to me like you have a few issues going on.

"(4) An eligible certifier is a person that is not related (within the meaning of § 45(e)(4)) to the eligible contractor and has been accredited or otherwise authorized by RESNET (or an equivalent rating network) to use energy performance measurement methods approved by RESNET (or the equivalent rating network).