With Boston's apartment vacancy rates hovering at a below-national-average 3.8 percent, landlords in the area are increasingly choosing not to let pet owners lease their units, according to the Boston Business Journal.

With potential tenants clamoring for every listing, many landlords and rental property management officials across the Boston area are choosing to lease to non-pet owners for reasons including avoiding the potential property damage caused by pets and staving off the noise pollution caused by barking and other pet noises.

"Now, with five to six applications for every apartment, you’re generally going to take the person with the strongest credit score and the least potential issues," said Gary Dwyer, Boston landlord and owner of Buyer Agents of Boston, in an interview with the Journal. Dwyer also stated that he and many other landlords are likely to let to tenants with cats, but not dogs.

Along with the potential for serious property damage, landlords may be avoiding tenants with dogs due to potential liability. Recent cases surrounding dog attacks in other cities have shown that landlords, alongside dog owners, can be held responsible if a dog on their property is involved in an attack.