Certainly.Any member of the u201cLandlordu201d side of the agreement may enforce their rights as the landlord u2022 it doesnu2019t require unanimity. Give a u201ccure or quitu201d* notice to the tenant and if they donu2019t correct it, pursue the legal process to evict.If the other owner gives the tenant opposite instructions, that would be interesting.Sounds like the two owners need to agree on their purpose for renting the property and who is in-charge.*A typical breach is failure to pay, which would earn the tenant a u201cNotice to Pay or Quit,u201d but your question does not mention the specific breach.