If you haven't already, it's worth reaching out to your Laserfiche Sales contact(s) to inquire about this. They may be aware of recent projects/case studies/etc. where Laserfiche integrated with Munis. 

I'll also repeat something I said in another post:

It's helpful to include a high-level description of what the desired/expected integration functionality is with these sorts of "does anyone know about an integration between Laserfiche and $App" requests. 

Data lookups? One-way or two-way? Migrating documents? Which components/modules? "Integration" is such a broad term. If the community here can understand the business and/or technical objective of the integration, you have a better chance of getting helpful responses!