We meet the 3rd Monday of every month at the Embassy Suites on Verdae.

For question number 2 the best way to handle that is to sign at a United States Embassy. 

They meet at the Embassy Suites hotel in Lombard on the third Sunday of the month at 5:30 PM.

Assign a POA and have the docs notarized before a consular official at the nearest US embassy.

I think the upstate Creia meetings are the 3rd Monday of the month at embassy suites in Greenville. 

Some of the time I was signing outside of the USA (USA Embassy in London for example).Speak with your title company or lawyer.

Jared, I don't know about structuring the deal as you asked, but I can advise you regarding the deal needing to be legally signed.The ONLY qualified entity that can legally notarize a Real Estate Purchase Agreement is a Consular official at the US Embassy near the location of the aunt.  

Typically extra costs you will see would be flights to come to the us to set up banking, trips to a us embassy to have items notarized, and additional tax prep costs.Just some general points to consider.

My grandma has Power of attorney The buyers will have an FHA loanRealtor thinks I will still need to go to the embassy to get deed and such notarizedIs this accurate?

I was going to blow up an embassy and they would not let me sleep waaa!