I would recommend to my client, a landlord, that they accept a slightly lower rent for a longer-term lease, providing they can be sure that the tenant is likely to be successful.
Rent is based on market evidence for similar properties in a similar location. There will always be differences in property though, for example, size, location, the state of the property, the amount of service charge etc. This is where a surveyor can really help because it is their job to know about these things.
Most tenants think that they can negotiate terms themselves without a surveyor. Don’t get me wrong, there are many successful tenants out there, but a surveyor may be able to get savings for you on the asking rent due to their expert knowledge on the market.
You never know, the year 1 savings might pay for the surveyor but as the tenant, you will benefit from that for the next 4 years.