Getting a proper appraisal: Two SFD on one parcel

[Kristen Miller]

Hi there fellow forum members!  I own a single parcel with two (legal) single family homes.  They have separate addresses, separate gas and electrical meters, and a shared well.  Both homes are in a desirable area, in excellent condition, with the owner-occupied unit being recently completely re-constructed less than a year ago.

I am looking to have the property appraised, however there are very few comps to work with.  The last appraisal I had done used mostly duplexes and triplexes.  I don't feel as though it properly represented the value of my property.

I'm new to the world of real estate and am seeking advice on how best to deal with the lack of comparable properties.  Can (and should) I be lumped in with duplexes and triplexes?  Is there a better way to communicate with the appraiser to be compared as a home with guest house?  Any advice and insight is much appreciated!