In my first attempted I uploaded a form, leaving lines 8 - 10 (the three Def No 1 lines), empty. Each possible deficiency has three lines (No., Question, Comment). To your earlier question, yes, each line represents and manually created label and a promoted field.
I created the following variables, based on your example:

I got the following email. The email still included all 10 deficiency comment groups, plus the No. 1 'blank' Deficiency Question; which, to this point - without the variable, didn't appear when blank - as can be seen with the only deficiency groups.
My goal is to have all blank fields or their labels NOT appear in the email.
A New REDW Employee Housing Annual Fire and Life Safety Inspection Report has been Uploaded -
Park: REDW
Site Name: (P228) Redwood National Park
Location ID: 11131
Location Description: Wolf Creek House / Lower, 5353
Occupancy Type: Storage
Tenant: NPS
Inspector's Name: Curtis T
Inspection Date: 12/12/2016 12:00:00 AM
NPS Representative's Name: Curtis T
Inspection Results: No Deficiencies Noted During Inspection.
Deficiency No.:
Deficiency Question:
Deficiency Description:
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then Email (my email here)