A friend of mine open a company limited ,than using the company purchase an house , actually he own 38% of the share and his girlfriend 61,95% ,the girl is also the only director of the company . For some reason related to the new law on the company created only to purchase the land he decide to close the company and give to his girlfriend the ownership of the house . His lawyer ( foreigner ) told him that a director of a company cannot purchase an house owned by the same company . I never heard about this before , anyone can help me to understand if it's true ?

Yes it is, unless the g/f actually ponied up 62% of the cash herself, what your friend created sounds very much like it could have been an illegal nominee structure. If caught they both could have been liable to serve up to 3 years and fines up to Baht 5 million.

So your friend was well advised to take the action he did.