In ancient CT days, a title searcher like me worked for an attorney.  I would do the search and draft a Certificate of Title (aka Opinion of Title) to the hiring entity (mostly law firms who did not have searchers or the cost of doing it themselves was higher - this was BEFORE title insurance became common).  The attorney would review my search notes, package, and draft Certificate ... make any changes and sign it.

The "Certificate of Title" to XYZ company put OUR LAW FIRM MALPRACTICE and E&O insurance behind that Certificate in the event there were any errors, mistakes or missed mortgages.  Although not full-time in that realm, we have the occassional "limited certificate of title" for bring down by a searching company, which often isn't an attorney.

Not any attorney, but "to ask for it" is legal.  The questions to my mind:  Why?  Is the company using the Attorney Opinion instead of having the borrower purchase mortgage title insurance?  The BIG question - is the company willing to pay the additional cost and wait the additional time for an Attorney Opinion of Title?  Do you have an attorney willing to put her/his insurance coverage behind your searches?