Hi Terri / Ravi,
Any customer / vendor contract scenario can be mapped in SAP RE-FX. Your specific requirements such as automatic proposal of permits based on specific characteristics and automatic FI postings can also be handled there.
There are security deposit contracts that can be separately created for managing Warranties and linked to the main contract. Real estate objects can be linked with Project WBS (PS Module) for reporting purposes, settlement of costs / revenue on projects can be easily managed and settlement can also be carried out.
I am not aware of any direct integration point between SAP PPM and SAP RE-FX.
Regds,
Hardik Sharma