protected override void ValidateRuleName(LeaseDTO lse)
{
if (lse?.Rent == null)
{
throw Null.Ref("Lease Rent Params");
}
if (lse.Rent.PenaltyRule != RuleName)
{
throw Bad.Key <LeaseDTO>(RuleName,
lse.Rent.PenaltyRule,
nameof(lse.Rent.PenaltyRule));
}
}