fourplex zoned as triplex ??

[Marci Stein]

Have an offer on a short sale 4 plex, just noticed the records state "triplex".
I'm not sure if that should make a difference to me , as i am still pretty new at investing. i have never had a multi unti before. I will be buying this for half the market value, if my offer is accepted. what does it mean to me that it may be zoned as triplex? thanks very much.