What kind of a company are you ? MSP ? Regular other industry company that bought another ? I ' ve worked for several big companies that liked to hoover up others . Usually when we documented their networks it was just basic stuff they wanted . How many switchesswitch ports they have , how many used . Internet connection bandwidth . Resiliency yesno . Firewall model and vendor . General engineering opinion on the state of the network . E . G is the cabling good enough , is the kit in support and well maintained , does the config look OK to us or is it all a mess ? Usually it was just a standard step revealing they do things very different to us so we rip it all out and put our standard kit in . Only in extremely rare cases did we buy anyone who ' d just spend shitloads refreshing their infrastructure with brand new gear .