Outlets Open Ground

[Chip Marchand]

Looking for some advice on a rental property I just purchased. The inspection report indicated that the electrical outlets were not grounded or “open ground.” In talking to an electrician it would cost $900 to completely ground the house or they could install GFCI at the beginning of each circuit for $550. Technically the house is not out of code, however, if there were to be an electrical surge it could damage appliances plugged into ungrounded outlets or potentially cause a fire. Has anyone dealt with a similar situation and is this something that I need to spend money on before placing a tenant due to safety or liability risk? Thanks.