I've reached out to the office about 2 hours ago, but no one answered the phone.

I would check with an appraiser and your municipal zoning officer to determine if they are acceptable.  

I'm wanting to purchase and rehab or build in rural Ga but would like to talk to a good loan officer who can let me know if the location and me qualify for a USDA loan?

In theory after you have made timely payments on their loan that should be considered, but in practice I have yet to find a loan a officer that can package it so their underwriters will except it. 

Agents help us with operational tasks such as tenant screening & applications, leasing, marketing and listing management, reporting, owner onboarding, phone & email support, maintenance requests, admin support, overnight support, nurturing relationships with realtors and relocation companies, graphic design, bookkeeping, sending owner statements, managing collections, and other back-office tasks.I have some agents in LATAM (Argentina, Bolivia) that I can make introductions to.

Not once did anyone come to our home to meet and we had no need to have an office space because we met clients at the location where the work was being done.

I know the answer to this question will be something along the lines of "it depends" but which office in a generic city should I inquire of regarding the legalities and regulations concerning short-term rentals?

It's all done by email, you'll never talk to your rep or processor by phone and if your loan officer or processor is bad at they're job getting a loan closed can be a nightmare. 

I don’t want to give them more info/ammo than necessary.I would tell them to call the police if needed for the fights and that you have checked on the smoking issue and it's been denied. 

I currently have 25 in office staff and 25 remotes.