Letting a retail property - costs involved?

[onekeano]

I'm thinking of buying a retail property to let and want to do some due diligence to see if the number stack up. My feeling is that as this is already subject to lease and tenant is not affected the costs include:

a)Mortgage -Principal
b) Mortgage - Interest
c)Insurance (medium size store - maybe 5k?)
d) Maintenance (or is this the tenants responsibility)
e) Accounting fees
f) Rates (landlord or tenant)?
g) Anything else.....????
h) Tax (rent - less (interest + insurance + maintenance + fees + rates + anything else)

Am I missing anything? Any advice appreciated....

Roy