Specialist valuer?

 

A shop owner client is considering selling is meat processing retail shop and asked for a valuation of the shop to get an idea of what it could be sold at.

 

Where can i get  specialist valuer to to advice on what this value can be. Accounting figures like profitability, turnover, assets value are avialable , but not sure how to vlaue intangible assets like good will. is there a specialist firm someone could link me to ?

 

many thanks