Do I need to update the rental current to code?

[Belinda M.]

I have a condo that was built in 1987. My current tenant is complaining that the circuit breaker trips when they use the Microwave and toaster at the same time in the kitchen.  I had an electrician check and the circuit is overloaded when they use the two appliances at the same time.  The recommendation from the electrician  is to update to have dedicated circuit for microwave and an extra circuit.  Also, since the circuit breaker panel can only handle so much and that too, he recommends to be updated.  This circuits and breaker panel updates will cost me around $5k-6k.   I would assume that when the condo was built in 1987, it was built up to code, could I leave the condo as it is and just recommend to the tenant to distribute the load of appliances in the kitchen.  Is that acceptable?   Thanks.