I am a 36 year old Chief Executive Officer of a human service agency
serving people with mental retardation.  I had to quite college after
my sophomore year because of the death of my father.  For the past 14
years I have worked in the field of mental retardation in a variety of
supervisory and executive positions.  I teach non-credit courses at my
local community college and speak at many seminars dealing with my
profession.  I would like to go back to school and finish my degree,
however, I feel with my advanced knowledge of my profession it would
be a waste of time and money to enroll in a bachelor degree program. 
Is there any accredited university that would accept someone into
their master degree program in human/social services without having a
bachelor degree?

Dear Eric, 

There are few programmes that fit your area, and only one that I could
find that is exactly what you're looking for:

Lincoln University (PA) offers a Master of Human Service (MHS)
programme, whereas "Applicants without a bachelor's degree must have
five (5) years or more of progressive paid work experience in human
services to qualify for admission to the MHS Program" (SOURCE: Lincoln
University, Graduate Programmes,
<http://www.lincoln.edu/registrar/catalog/GraduatePrograms.pdf>).

Lincoln is accredited by the Middle States Association of Colleges and Schools. 
Lincoln University
<www.lincoln.edu>

******

Cambridge College (MA, also holds distance learning programmes) is a
regionally accredited college that admits students with only partial
BA (50% of the credits, for example), and bases their admission
policies on factors other than grades (interviews, job experience,
etc.):

"Master?s Program Applicants Without a Bachelor?s Degree: 
Qualified students without bachelor?s degrees may be admitted to
selected graduate programs; see academic programs list.

 Evidence of personal and professional accomplishment, and
demonstration of the academic and professional skills needed to
succeed in graduate study

 High school diploma or GED certificate

 Eight years of responsible work experience after
high school

 Counseling Psychology ? please ask your admission representative
about scheduling a meeting with the program coordinator or designee."
(SOURCE: Cambridge College, Application Forms,
<https://www.cambridgecollege.edu/requests/>).

The college has several masters that would fit you, but especially the
master programme in Counseling Psychology (36 credit concentration -
Psychological Studies).

Cambridge College
<https://www.cambridgecollege.edu/> 

*****

Wayne State University also offers a related masters degree, yet not
titled as "Human/Social Services":
"The Master of Arts Degree in Recreation and Park Services is a
34-semester-hour program and is open to students with or without a
bachelor's degree in the field. Students may emphasize either
Recreation Administration or Therapeutic Recreation. For students with
an interest in working with the aged, a 40-hour specialization plan
allows students to meet the requirements for both a master of arts
degree and a Graduate Certificate in Gerontology through the Wayne
State University Institute of Gerontology."

<www.wayne.edu> 

There are more masters programmes (mostly MBA) that one could do
without having a full BA, and based on their experience. I hope this
answered your question. Please contact me if you need any further
clarification on this answer before you rate it. My search strategy
was:
"without a bachelor" , [master without bachelor] + [name of discipline].

I didn't think it was possible, and from the lack of response I'd
imagine that no readers know anyone who has done this.
I know it can be done in other countries, but I don't know how if a
masters degree from another country obtained this way (even from a
respected university) would be worth much here.

By definition, a masters degree comes AFTER receiving an undergraduate
degree. I'd suggest you complete your undergraduate degree and then
pursue your graduate degree. You'd be surprised--but, there is always
something more to learn when you do a degree (even if you've been in a
particular industry for a while).

Legolas-ga