Welcome to the forum Martinez11. While this is an open carry forum and you can and apparent do OC, we try to answer such questions as best as we can.
The most important question is what did the attorney say? I would encourage you to consider taking that council over ours - we are not attorneys. After having talked with an attorney and if you are going to pursue in accordance with what you were advised, you gain nothing by posting the details here, except to expose yourself to voluntarily providing testimony against yourself - the information here is publicly available.
This thread can be deleted if you so request it by PM to me or just the details removed by you via editing.
Nevertheless, I am somewhat confused as Colorado is known as a shall issue state - the Sheriff has no discretion. Presuming that you have no statutory restriction(s), have satisfied the requirements, submitted the proper paper work and money, then the permit shall/must be issued.
"(3) In accordance with the findings and conclusions specified in subsections (1) and (2) of this section, the general assembly
hereby instructs each sheriff to implement and administer the provisions of this part 2. The general assembly does not delegate
to the sheriffs the authority to regulate or restrict the issuance of permits provided for in this part 2 beyond the provisions of
this part 2. An action or rule that encumbers the permit process by placing burdens on the applicant beyond those sworn
statements and specified documents detailed in this part 2 or that creates restrictions beyond those specified in this part 2 is in
conflict with the intent of this part 2 and is prohibited."
As you will note, I am not in/from Colorado. Others more familiar with your state laws should be along shortly. They may add or correct my understanding. Good luck.
Know the laws and any limitations - OC wherever you may. It is liberating and effective.