Short answer. No. Article 1677 of the Civil Code is explicit: the purchaser in a sale with the right of redemption cannot make use of the power to eject the lessee until the end of the period for the redemption. You must wait for the redemption period to lapse or be extinguished first.
What the law says
The purchaser in a sale with the right of redemption cannot make use of the power to eject the lessee until the end of the period for the redemption.
Civil Code, Article 1677 — Buyer in a Pacto de Retro Sale. Read the full provision →
Why the tenant is protected during the redemption window
A pacto de retro sale — a sale with the right of redemption — transfers possession and title to the buyer, but leaves open the possibility that the seller will repurchase the property within the agreed period. While that window remains open, the buyer's ownership is not yet unconditional. Article 1677 reflects this uncertainty: the purchaser in a sale with the right of redemption cannot make use of the power to eject the lessee until the end of the period for the redemption. The existing tenant cannot be displaced until the question of who will ultimately own the property is resolved.
What 'end of the period' means
The redemption period ends in one of two ways. Either the seller fails to exercise the right of repurchase within the agreed time — and the buyer's ownership becomes absolute — or the seller redeems the property, and the transaction is unwound. In both outcomes, the status of the tenancy becomes clearer. If the seller redeems, the property reverts to them, and the tenant's relationship is once again with the original owner. If the period lapses without redemption, the buyer becomes the unconditional owner and may then consider available remedies regarding the tenancy. Until one of these events occurs, eviction is not available.
The tenant's position during this period
The tenant did not choose to be in a property sold with a right of redemption — that was a decision made by the original owner. Article 1677 ensures that the tenant is not caught in the middle of an ownership dispute and forced out while the seller still has a legal right to reclaim the property. The tenant's lease continues on its original terms during the redemption period. If the lease has a fixed term and that term expires before the redemption period ends, the tenant's right to remain would depend on the terms of the lease itself, not on Article 1677.
After the redemption period expires without redemption
Once the redemption period lapses without the seller exercising the right, the buyer becomes the full and unconditional owner. From that point, the buyer may deal with the tenancy under the ordinary rules. Whether the buyer can then eject the tenant depends on whether the lease has expired, the grounds available under the applicable law on leases, and the notice requirements that govern the type of tenancy. Article 1677 only suspends the ejectment power during the redemption window — it does not create indefinite protection for the tenant beyond that point.