Property Manager Withholding Leases

[Sarah Anne]

I had a property manager for 1.5 years and our agreement just ended. I requested the tenant leases that they had for the last 1.5 years, and they're saying it will cost $100 for them to retrieve and send them to me. I need those contracts for current business. This seems very unethical to withhold leases that are technically mine and try to charge an excessive amount of money just to retrieve about 6 contracts for a single duplex. Can anybody shed some light on this or help me understand how I should handle this?