Texas Civil Practice and Remedies Code - CIV PRAC & REM § 61.001. General Grounds

(1) the defendant is justly indebted to the plaintiff;

(2) the attachment is not sought for the purpose of injuring or harassing the defendant;

(3) the plaintiff will probably lose his debt unless the writ of attachment is issued; and

(4) specific grounds for the writ exist under Section 61.002.