This resulted in a smaller entry space down into the basement.  

I have a client who would like to buy a commercial space for her event planning gigs. 

I can't speak to this specific program but there tends to be a common theme with all of these programs.They are traveling the country  up selling coaching and other things.

The unit assigned to the other space is currently vacant, so I'm guessing their strategy was "'tis better to ask for forgiveness than permission" and helped themselves to both spaces.  

After all debris were removed from the house, we closed it up and used a fog machine to fog every room, all vents, and the attic spaces with Concrobium mold treatment.  

IF that is the case it would really be better for them to only put in one name so that there are more available mortgage spaces available. 

., instead of renting out that extra space and getting $1000 from a renter)?  

The new space would be used as the kitchen, so either tile or wood floors.I'll try your suggestion of reverse engineering the price on a new build, that's a great idea, thanks!

Each tenant gets one garage and the space in front of it.

Based on this, if you still have the budget and interest to proceed, consider planning kitchen flooring, cabs, counter, appliances to all match a theme and create a cohesive look so the kitchen looks well planned to buyers when you go to sell in 2 years and not a Frankenstein kitchen.