The Dept of Consular affairs is the same organization as the one mentioned in step 3. On Chaengwattana Rd, next to the government complex. Where all offical translations go to get a final stamp from the government (as well as a bunch of other things).
If she has recently applied for a new mou work permit why are you trying to get her a tourist extension? Just let the process happen. I think because of the backlog due to the virus they have extended processing times. Normally if she has evidence of application that will be fine for immigration purposes until the stamps are put in her passport.
Odds are she is legal at the moment, but the government in their wisdom renews most work permits for migrant labourers at the same time every year - March. If she is legal she’ll have a passport with an Non immigrant LA visa stamped into it, as well as a ID card sized work permit. Both will be valid through to March.
Hire an agent used by the Burmese to do their visas. Now is the sign up time. They get LA visas under the migrant labour programme. Most of the info will be in thai so just get the agent via the Burmese community grapevine
It’s possible to enter thailand on an expired Thai passport. She’ll need to renew it in Thailand before she can depart again, and it will cost 1000 baht to have to done in 3 days (3000 baht for same day service). This assumes of course she is fully registered on her house registration and has an up to date valid Thai ID card which is what is needed to get a new Thai passport
Well, if you are based in Thailand more that 180 days per year then you become a thai tax resident. Thai tax law states that any income remitted into Thailand in the same year it is earned is taxable in Thailand, subject of course to foreign tax agreements.