Complex sentence: Such owners must now approach their previous landlord (Registered Social Landlords RSLs) and offer them'first right of refusal' if the RSL is unable to offer a realistic purchase price then that landlord still has the right to offer the property to an alternative RSL.
Split into simpler sentences: Such owners must now approach their previous landlord (Registered Social Landlords RSLs) and offer them'first right of refusal.' If the RSL is unable to offer a realistic purchase price, then that landlord still has the right to offer the property to an alternative RSL.