Tex. Business Organizations Code § 6.052

(a) Notice of a meeting is not required to be given to an owner, member, or governing person of a domestic entity, or a member of a committee of the owners, members, or governing persons, entitled to notice under this code or the governing documents of the entity if the person entitled to notice signs a written waiver of notice of the meeting, regardless of whether the waiver is signed before or after the time of the meeting.

(b) If a person entitled to notice of a meeting participates in or attends the meeting, the person's participation or attendance constitutes a waiver of notice of the meeting unless the person participates in or attends the meeting solely to object to the transaction of business at the meeting on the ground that the meeting was not lawfully called or convened.

(c) Unless required by the certificate of formation or the governing documents, the business to be transacted at a meeting of the owners, members, or governing persons of a domestic entity, or the members of a committee of the governing persons, or the purpose of such a meeting, is not required to be specified in a written waiver of notice of the meeting.

(d) The participation or attendance at a meeting of a person entitled to notice of the meeting constitutes a waiver by the person of notice of a particular matter at the meeting that is not included in the purposes or business of the meeting described in the notice unless the person objects to considering the matter when it is presented.