YouTube has a ton of videos that document the relocation process including the Visa situation as well as places to live in the city at all price points. Greeny Travels is one example.
Right. In fact I'm in the process of getting the e Visa right now and they've improved their website since the time I did it last year. Took less than 5 minutes online.
In my mind your assessment is correct. I arrived into Thailand and then handled everything here with an agent. Got all the necessary paperwork and bank account opening and a nice visa stamp completed in under a day with no stress. I came to retire, not to generate extra work and I get no amusement in learning the intricacies of immigration. So an agent was perfect for me. Others have different opinions.... and more free time!
Definitely a good strategy. I became "recreationally employed" back in 2002 and passive income investing several years ago. So we're both reading the same book.