I know it's a long shot, but I'm currently having lawyers review the signed subscription documents to see if there's any way to minimize the losses here. 

Their lawyer talked a few time with my lawyer from my home state but he just used delay tactics and bunch of bs. 

If you have not done so already ....Time to invest in kick *** accountant and lawyer.   

I’m considering having a lawyer send them a certified letter, though I know that will still come with a significant fee, which is still preferable to full service.

NEED HELP: I am looking for assistance in lawyers and other experienced syndicate mangers to seek advice and some guidance. 

Have you spoken to an immigration lawyer about your options? 

you start with a realtor Lawyer is for when you have the deal tied up. 

It's not worth hiring a lawyer but as you suggested, small claims court may be an option IF you hired them in your personal capacity OR if your jurisdiction allows LLC owners to go to small claims and represent the LLC in court (many, most?

You may have your lawyer review the contract/property management agreement.

Would I still have to go through closing lawyers and get the deed updated to my name or LLC?