We would likely want to convert the detached garage to an additional office/ADU, so thats the main reason we are wanting to go this route.

I cannot find the owner as the address tax records are in an llc with no contact info and the office address on the data doesn’t exists.  

Call the police - Get ahold of the OIC (Officer in Charge) of the division of the city where you're renovating the property.

I have commercial office space that's going strong as well as multi's.  

If you need advice from attorneys on this, call the Law Offices of Todd Rothbard. 

The inspector generals office supposed to be doing an investigation.

Start there it will offer many more options and choices than the 'loan officer' at your bank branch.

Working in an assessing office and learning more and more about houses and the value attached. 

From what I understand, I hear that this particular office is understaffed.  

If you could bring your own work in to an appraisal office, you would be an asset to them, more than a liability.* Along the previous line - research specific lenders and find those that do "direct engagement."