Leave old wiring as it is for the time being

[Brad Smith]

Just bought an older house and have explored rewiring.  As was mentioned in another thread, I'm thinking about waiting until winter time to get bids on the work because everyone seems to be swamped in my area (San Marcos, Tx) at the moment.  I was told because of recent floods... dunno.  

I talked to one electrician who said he had a friend who had an older property that he was leasing as is... old wiring and all.  What are the risks of leasing with 50's wiring, basically, no grounding? 

Thanks,

Brad