You mean that the sponsor does not have to show money, only a letter that I sponser my wife and two kids and even every body else wanting to have this visa?
Yes, if you did visit the e-visa website you did see that you have to fill in your current location and you did see that you need proof of that location.
At the end you sign that you did tell the truth and agree that the visa can be denied.
IF you like to follow the law, you ask your landlord to make the report and ask the notification that it is done.
If you do not like to follow the law, ignore the law and just do what ever you think is the best option.
If you want a Thai driving license, you need if you are longer than 90 days inside Thailand, you need an registered address to get the Certificate of Residence.
Some people only think about 90 days reports, but there is more in life.