The man came, took photos, wrote up 3 citations on the work done, and suggested I call the plumber, and then to contact AHS about their plumber.

Upon request, I will share citations to relevant studies, and would be happy to answer other questions you may have concerning my recommendation that [FULL NAME OF TENANT] have an emotional support animal.

I've never made the tenant(s) responsible and hire out a yard service company.BTW:  The City citation will be mailed to YOU!

For what it's worth...Here is the actual statute regarding Security Deposit Return for the state of Maryland:2015 Maryland CodeREAL PROPERTYTitle 8 - LANDLORD AND TENANTSubtitle 2 - RESIDENTIAL LEASES§ 8-203.1 - Security deposit receiptUniversal Citation: MD Real Prop Code § 8-203.1 (2015) (a) Contents. -- A receipt for a security deposit shall notify the tenant of the following: (1) The right to have the dwelling unit inspected by the landlord in the tenant's presence for the purpose of making a written list of damages that exist at the commencement of the tenancy if the tenant so requests by certified mail within 15 days of the tenant's occupancy; (2) The right to be present when the landlord inspects the premises at the end of the tenancy in order to determine if any damage was done to the premises if the tenant notifies the landlord by certified mail at least 15 days prior to the date of the tenant's intended move, of the tenant's intention to move, the date of moving, and the tenant's new address; (3) The landlord's obligation to conduct the inspection within 5 days before or after the tenant's stated date of intended moving; (4) The landlord's obligation to notify the tenant in writing of the date of the inspection; (5) The tenant's right to receive, by first-class mail, delivered to the last known address of the tenant, a written list of the charges against the security deposit claimed by the landlord and the actual costs, within 45 days after the termination of the tenancy; (6) The obligation of the landlord to return any unused portion of the security deposit, by first-class mail, addressed to the tenant's last known address within 45 days after the termination of the tenancy; and (7) A statement that failure of the landlord to comply with the security deposit law may result in the landlord being liable to the tenant for a penalty of up to 3 times the security deposit withheld, plus reasonable attorney's fees.

There is something called "citation by publication".

On top of that, they called CE 3 days ago, letting the sewer continue to back up into the basement AND not notifying me of the CE citation, which obviously also limits the time I have to comply.Obviously the tenant has rights to a habitable unit, but what if they don't notify me of issues? 

Okey doke, do you have some citations?

You'd be single for a long long time.Do you have any authoritative citations for this claim? 

I did let them know and if they could find a citation to justify their Zoom office hours, which I doubt there is.

ANd how does that compare to the other houses around.Also, check for citations for disrepair of the house, if it's in such bad shape.Some years ago I had a vacant lot under contract in West Oakland.