How many times per year can I enter thailand for 60 days

Also I run a personal training business here in Australia will I have to stop coaching each visit I plan to bounce between south east Asia for about a year and unsure of the legality and tax/visa implications needed

Hi, I'm retired and wanting to live in Thailand for a year starting in September.

I have 2 properties which bring in approximately 80k baht per month in rent... plus about 1 Mio baht cash.

I do want to give extra lessons online to only non-Thai clients. However, I will only be starting this now so I have no portfolio. Retirement visa vs. DTV? Any suggestions much appreciated.

I read about DTV and one thing is not clear to me: "eligible foreigners are digital nomads, remote workers, freelancers". what exactly it means "freelancers" in Thailand?

i'm freelancer for Europe, it means i don't work for a company but i am an independent contractor. does it mean i can work in Thailand for my clients (not thai) and live in Thailand for 180 days per year (or more)?

thank you for answers