I’ve consulted for firms operating networks with up to 500 stores.
How can you help someone if you are asking such fundamental questions? It’s like the blind leading the blind.
People with experience creating and growing a network of retail stores know principal problems are 1) how many stores (acquire or build) in what period of time (implementation timing), 2) which location to choose and 3) what store characteristics for the sites selected.
Biggest challenges are 1) obtaining funding (integrated investment model), 2) assessing sales and 3) designing services (service quality, customer satisfaction).
Time involved varies considerably and is a function of business model, number of sites and distance between sites, management, etc.
In acquiring two existing stores, the principal real estate and investment risks are 1) can entitlements be obtained, 2) is there previous toxic contamination and 3) will future market conditions allow sale to 3rd party at expected price.
Principal operating risks would be 1) will sites produce sufficient sales and 2) is new owner capable of providing adequate management to ensure efficient and customer-centric operation.