I have also been considering USA LLC +
Thailand.
I work as a freelance software developer for a few European clients.
I got a long term Thai girlfriend and we have been considering marriage already. If we got married i can get residency + work permit. It also gives me a 3-year path toward
citizenship. I just need to earn a minimum of 40k thb per month salary from a Thai company. My girlfriend's father has a Thai company, so if I get employed there doing basically nothing I can just give him the equivalent in
cash.
I'm a little concerned if it increases my risk to have a work permit and get a Thai salary as I will be in their tax system. In reality, it probably doesn't change much. Being here and talking to people it seems like hardly anyone who works remotely pays any tax both Thais or foreigners.
If it all works out it seems almost too good to be true. Living in my favorite country,
no tax, citizenship in 3-4 years.