Hotel is a lot of work. People get college degrees in hotel management. You aren’t going to learn the business in a 25 word post.
Employees might steal, but unless it is a rent-by-the-hour place, it is not really a cash business. Your maids could steal soap and the little pillow mints.
If there is a lounge, your bartender can over-pour drinks to get large tips. if there is any cash business, your bartender could possibly steal money from you. If there is a restaurant, your employees could steal frozen steaks.
You can count on guests stealing towels occasionally although it beats me why anyone would want a hotel towel.
I would suggest hiring good people and having an effective inventory system.
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