We have a commissioner who owns an old pickup, valued under $25000, that the wants to sale to the County to use as a work truck. The County will probably be okay with buying it. However I would assume that there is a conflict with a commissioner selling an item he owns to the County. Could he sale the pickup to a third party and the third party sale the pickup to the County?

[And run like crazy.]

Tex. Loc. Gov't art. 81.002.
(a) Before undertaking the duties of the county judge or a county commissioner, a person must take the official oath and swear in writing that the person will not be interested, directly or indirectly, in a contract with or claim against the county except:
(1) a contract or claim expressly authorized by law;
or
(2) a warrant issued to the judge or commissioner as a fee of office.