yes it is perfectly legal to sell games with MMF DEV.
overall that is the intention of MMF DEV. you can look at niffla's games like night sky. he sells it on steam and it was made with mmf dev. he doesn't need to add any MMF/Clickteam logo anywhere
It might be Nifflas game but Steam are the ones selling it and they sure are a company. I'm having trouble coming up with a single person who has sold his games in a big ammount and being a private person.
well
niffals sells the gameS himself on his own website so it is his own private thing
AND
thats a second thing
he started to sell night sky on steam
but you can also just buy night sky from NIFFLAS - the person- not just STEAM- the company
so that is EXACTLY what you want to do and he is swedish. so perfect answer.