Using Enable Link Expiration Feature you can set the Link expiration time on the client form. You can refer to the following doc to configure and understand this feature in detail - Configuration Guide for Enable Link Expiration Feature.
P.S. Discover Update Client Details, the easy way to keep client information up to date in Salesforce. Find it on AppExchange - https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3A00000EcsATUAZ