Most of the bank websites have calculadoras where you can punch in the numbers: for example Banco Popular assuming mortgage is for 2 million pesos & value of property is 3 million
Popularenlinea.com, Calculadora de Financiamiento
annual interest is 13.95% and you borrow for 180 months (15 years) you would be paying monthly: Cuota (interés + capital): RD$ 26,567.68 + Seguro de vida deudor: RD$ 560.00 +
Seguro de vida co-deudor: RD$ 448.00 + Seguro de propiedad: RD$ 2,217.60 for a total of RD$ 29,793.28 each month.
Here's the link, you can type in your own figures, click on Calc Prestamos:
Popularenlinea.com, Venta de Inmuebles