<prompt> Translate the following text to EnglishKwa sababu wanasheria wa LSC wanapaswa kujiondoa wakati wowote swali la uhalali wa sheria ya ustawi linapoibuka, mtu binafsi hawezi kupata uwakilishi wa pamoja ili changamoto ya kikatiba itolewe na mwanasheria asiye wa LSC, na a504 a a b inawezekana kuamua wigo na mipaka ya mpango wa shirikisho, hali ambayo inahakikisha fedha zinaweza kutumiwa kwa kesi hizo za haraka zaidi kwa wasiwasi wa bunge.  <response>: Because LSC attorneys must withdraw whenever a question of a welfare statutes validity arises, an individual could not obtain joint representation so that the constitutional challenge would be presented by a non-LSC attorney, and other, a504a16 is necessary to define the scope and contours of the federal program, a condition that ensures funds can be spent for those cases most immediate to congressional concern. 