or line in open('1.txt'):
    str_lic_scheta = re.match(r'(Лиц\.счёт)(\s{1,3}\d{1,4})(\s{1,10}.*)', line)
    summa_k_oplate = re.match(r'(с\-\s{1,3}\d\d\-\d\d\-\d\d\d\d|\s{10,22})(\s{1,8}Сумма\s{1,3}к\s{1,3}оплате) (\s{1,4}\d{1,6}\.\d{1,2})', line)

[code python] slovar = {str_lic_scheta.group(2):[str_lic_scheta.group(3),summa_k_oplate.group(3)]}[/code]

var1 = var2 = None
for line in file:
    if var1 is None:
        search var1
    if var2 is None:
        search var2
    if var1 and var2:
        add var1 and var2
        var1 = var2 = None
 
if var1 or var2:
    exception