Usually when I encounter a company name like ABC Greenhouse Inc., I remove the “Inc.” when I need to make it possessive (i.e., ABC Greenhouse’s business model). But today I encountered a company name that had two period-ending abbreviations in its title: it was similar to Mario Bros. Inc. How do I make this company name possessive? Mario Bros.’s? Mario Bros.’? Mario Bros. Inc.’s?
Brandon P., St Louis, MO
Answer: My first suggestion is to avoid the possessive at all costs.
The offer from Mario Bros. Inc. was accepted.
Second, Mario Bros. Inc.’s offer was accepted.
Third, I myself might write (and not consult any other authority):
Mario Brothers’ offer was accepted.