Question about Retail Business for Artistic Photographs

So, I want my other sims to be able to buy the artistic photographs my photographer sim takes, but I don't want her to open a retail store because she is in the medical profession and only does photography as a hobby.

I had the idea to have another sim from another household start a photography gallery/retail business for her photos by temporarily moving him in to her apartment, having him make copies of all of the pictures, and then moving him out again. I was going to have him keep all the pictures in small format in a locked area of the store, and then just put copies out to sell; that way he could replace the copies once they sell. I don't actually care about profit and I probably won't be playing the store owner sim for anything other than a means to distribute the photographs to other households.

My question is, if I'm not actively playing the store manager household and I take a sim from another house to his store, will it still be open? Or do I have to go to the store owner's house first, send him to work, and then send my consumer sim to the store afterward? I've never run a retail store before, so I'm unsure how to accomplish my goal of just making these photographs available to all the sims in my save.