Pomeranians are loud and always barking.

I suspect that you're barking up the wrong tree with the bank.

Then I thought between unit barking could be an issue. 

I have a tenant that told me they have a dog but I just heard from a Neighboor that the dog is massive and constantly barks at all hours.

Long story short one of the neighbors had a dog that was barking nonstop in the evening.  

This is the time you're most likely to run into problems with scratching, chewing, going to the bathroom everywhere, digging, throwing up, barking, or whatever. 

For those of you who allow pets in your rentals, any recommendations on specifics to include in lease (ie: keeping yard clean, no noise complaint from barking dog, etc)?

Cover the tenant yards with beauty bark, gravel, and drought resistant trees.

I have no idea if this is medically true or not, but it seems useful here.If you lower your expectations then those who act honorably will surprise and delight you.For instance I always suspect a large barking dog will bite me--I'm ready for it--and when it doesn't happen--I'm glad, and happy.Filter out the fish food and surround yourself as much as possible with "Good" "Dependable" people--which may take a few years to do, but once it's done, it's done. [2] You could attend a Tony Robbins Seminar (you might want to buy a front row seat if you can afford it):https://upwflorida.com/nov-2022[3] Here is some Tony Robbins reading material you might find helpful: https://core.tonyrobbins.com/Global/FileLib/PDF/Re-Awaken_the_Giant_Within_Highres.pdfGood Luck!

When they call......AND THEY WILL CALL....we generally don't answer right away because we want them to leave a message to see how they sound,...if they leave a message asking about the rental but in the background you can hear dogs barking and/or you can hear what may sound like a "pipe" and their voice has that raspy "smokers voice" then you know they probably smoke and/or have pets and/or use drugs.