Va. Code § 43-19
Every assignment or transfer by a general contractor, in whole or in part, of his contract with the owner or of any money or consideration coming to him under such contract, or by a subcontractor of his contract with the general contractor, in whole or in part, or of any money or consideration coming to him under his contract with the general contractor, and every writ of fieri facias, attachment or other process against the general contractor or subcontractor to subject or encumber his interest arising under such contract, shall be subject to the liens given by this chapter to laborers, mechanics, and materialmen. No such assignment or transfer shall in any way affect the validity or the priority of satisfaction of liens given by this chapter.
Va. Code § 43-19