Anything not specifically mentioned is usually analyzed by the IRS to see if current statutes/rules apply (step transactions, pledge rule, economic substance, etc.).

Have your lease state "no smoking of ANY substance".......If its legal in the state to posses, then you cant do anything.Growing is really a matter of scale..... people have "normal" plants, so you cant really stop them form having a few marijuana plants..... but you can state in your lease that you do not permit growing or heat lamps for "agriculture".......Again what your are really trying to do it protect your unit form damage....so keep all wording and items within that midframe

Smoking shall consist of but not be limited to: Tobacco, marijuana, cannabis, anything vaporized, and any illegal substances.2.No recreational or medical marijuana may be grown or consumed on the Premises by the TENANT(S) or guest(s) without the prior written consent of the LANDLORD.3.TENANT agrees to use direct deposit of rent every month to LANDLORD.4.LANDLORD permits the use of parking space #### aka ### to the TENANT(S). 5.LANDLORD permits the use of storage unit ### to the TENANT(S).

Services for survivorsHarriet's Hope is open to any individual — no matter their gender identity or sexual orientation — who has experienced human trafficking or chronic homelessness, meets CMHA's income guidelines for a housing voucher and is ready to make a commitment to sobriety, Kendall said.Most residents will be identified through the Salvation Army, but referrals can come from anyone, anywhere, she said.What sets the community apart from others is that the services residents need are embedded within it, Kendall said.Services include substance abuse disorder treatment by Alvis, case management through the Salvation Army, gender-affirming case management through Kaleidoscope Youth Center, a computer lab furnished by Dell, a food pantry, nutritional services, financial literacy classes, peer support, employment readiness programs, legal aid, health screenings, child care and more.Residents will start out with a one-year lease before going month to month, Kendall said.

You'd need to have a passion for helping people who are traumatized and/or recovering from substance abuse. 

Tenant shall not dispose of any substances or materials that may cause clogging, damage, or deterioration of the plumbing system, such as grease, oil, hair, sanitary products, paper towels, wipes, or chemicals.

Not everyone here is an expert but there personal experiences do add much substance to many topics.  

Really for anything of substance you need to elaborate more. 

Radon gas is a natural substance that happens in difrent area.

Of course, there is a chance that they'll move the 60 or 80 cans to the car and move back as soon as the inspection is done, so I am asking them to provide confirmation that they are not and will not store flammable substances for the duration of the current lease.