you can still register for TM30 as the house possessor. You don't have to be Thai. But if you have a Thai wife, why not have them complete the online registration? After that, you use the login she created to do the TM30 notifications. You don't need to know Thai. The fields are in English.
Why not just follow the law? Register to file a TM30 on the online website and simply sign in and file one every time you come back to stay at your house? It's hardly a hassle. Just pure laziness if you are the homeowner as you can easily register online to file TM30 for your own home.
you're confusing a multiple entry re-entry permit with a multiple entry tourist visa. Totally different things. Multiple entry tourist visas are valid for use anytime during the visa's 6 month validity period to enter for 60 day stays each time.
There are tons of posts explaining the process from people who went through it at Bangkok Pet Lovers. Join that group and you'll see all the info you seek.
I think most people routinely use cardless ATM nowadays and don't carry their ATM cards if they even still have one. If the account is frozen, the cardless ATM also won't work.
Anonymous participant 104 really tell that to the government agencies and major law firms that I deal with. Directors don't have to perform work functions. Doing the things I named like signing an Internet contract for the company, opening a company bank account, getting electric service started, are examples of director activities that don't require a work permit. You can start a Thai company or buy one and be a director. Neither DBD, nor the bank, nor any government authority will care what visa you are on. Your specific activities as director are what determine if you need a work permit or non B visa.