I do my own direct mailings to buy off market properties.

The "contact or help" e-mail button sends an email to a address that does not exist, so it kicks back all emails. 

Several times I asked her to mail/e-mail me the lease agreement and K. says sure and “keeps forgetting” it.

XYZ's contact info is: Phone, Mailing Address, email.

Once you said buckets with human waste it reminded me of a house I was asked to clean out and redo . 

I sorted the database for the zips I wanted and I mail merged the names and addresses. 

Depending on the notice requirements of your state and city I would make sure to get my renewal notice ou the next day Reminding the tenant that starting February first they would be on a MTM lease at this new higher rent (Market plus hassle factor $’s) and that starting that date tenants would be responsible for all hvac upkeep (filters and duct cleaning) and all landscaping (snow removal, weed whacking, mowing, etc) or they will be charged a $100/mo maintenance fee. 

The direct mail campaign targeted tax delinquent property owners.  

Cities that have a landlord registration process typically collect a mailing address for the owner or representative and copies of violation notices go there.  

The last check I mailed to them in November was returned to sender as undeliverable by the USPS.I am empathetic to their situation, but I want to make sure that we are dotting our i's and crossing our t's.