No, a Lifetime Account is paid in one payment for the properties in your account. If you need to add more properties you would need to pay a small fee to be able to have Lifetime Unlimited access for that new rental unit to be added to your portfolio.
Additional units for the lifetime account costs $20 per additional unit. The more units added the more of a discount received on units. Adding more units will discount this price to as low as $17 per additional unit.