There are quite a few prerequisites for FT.
I'm afraid there is no single cmdlet for that, you'll have to write a script that checks the conditions one by one.
These are the requirements:
- No unsupported devices and incompatible features
- VM must use RDM or thick vdisks
- VM must be on shared storage.
- VM can have only 1 vCPU.
- VM must be running a supported guest OS. See KB1008027