1. Tax rate percentage transferring real estate: The tax rate for transferring real estate in Panama is generally around 2% to 3% of the property value.

2. Percentage tax rate for renting out a house: The tax rate for renting out a house in Panama is typically around 10% of the rental income.

3. Top 5 most popular regions to live in Panama:

- Panama City: The capital city of Panama offers a cosmopolitan lifestyle with a mix of modern amenities and historic charm.

- Boquete: Located in the mountains of Chiriqui province, Boquete is known for its cool climate, outdoor activities, and expat-friendly community.

- Coronado: A beach town on the Pacific coast, Coronado is popular among expats for its beautiful beaches, golf courses, and amenities.

- Bocas del Toro: A group of islands in the Caribbean Sea, Bocas del Toro is known for its laid-back lifestyle, stunning beaches, and vibrant expat community.

- El Valle de Anton: A mountain town in the Cocle province, El Valle de Anton is known for its natural beauty, cooler climate, and outdoor activities.