My Buenos Aires tenant pays on time, reports problems early and looks after the property. They currently pay ARS 2,143,000, while comparable market rent appears to be around ARS 2,676,000. I value the stability, but I also do not want that gap to keep widening. Would you make a smaller predictable increase, hold the rent, or pair a review with agreed improvements? I’m interested in the practical trade-off between retention and turnover risk.