I have personally not worked on any of these but it does not seem to be anything too crazy.It's an FHA Loan that can be combined with other FHA products like a 203k.I am a Loan Officer for "Correspondent Lender" so I can operate under the rules of over 100 lenders...I would be able to place this in a few hours with 1 email...We would just have to make sure all the boxes are checked...Energy Efficient Improvements Must Be Cost-EffectiveThe financed portion of an Energy Package must be cost-effective.

Does your end buyer often cover the closing costs and attorney's fee or is this something you take out of your profit on the deal?

@Yu Xiao, using that property as a short term rental during the time you own it will open up some additional tax saving potential as will doing a cost segregation study to take advantage of some accelerated depreciation.  

I would let it ride a bit as, if you refinanced it, your rate would increase.

so - what are the ages of those items, how much will they cost to replace, and how long will they last? 

One area that has caught my attention is the Pigeon Forge/Gatlinburg TN area - seems like there is a good rental income to acquisition cost ratio.  

Plus, when done correctly, you as the KP can capture the ALL the Fed investment Tax Credits (ITC) plus the  State, MARCS, and Cost Seg Depreciation to massively offset your High W2 / 1099 Income - I wrote a book specifically for people like you and your wife to address your concerns. 

I built the cost into the management fee of my next acquisition that I currently have under contract.

You can, but you will only have 1/3 of the total cost segregation benefits, and only for one year.Read this: https://www.biggerpockets.com/forums/51/topics/1122635-the-s... 

It's an easier, less costly way for Homeowners to use their equity -- not just borrow against it.My experience: real estate law, finance and development.