I am guessing that the concern is you are paying for the water as he washes his clothes?

It's been over 5 months and the former tenants have yet to come gather their belongings - a lot of cloths, misc stuff, furniture and 2 vehicles in the garage. 

Some companies like New York Life have some good products that guarantee 5% and I don't have to feed and clothe a dinosaur 24/7 365.Before you invest your hard-earned cash don't be afraid to post all the numbers and details.

That smoke lingers onto clothing and can easily be brought inside. 

If it is her paperwork or clothing that is obviously hers ok, while someone is present.  

They have yet to come gather their belongings which consists of cloths, misc stuff, furniture and 2 vehicles in the garage.

Otherwise, you may end up with a dinosaur you can hardly afford to clothe and feed.

The entire house is scattered with personal belongings, furniture, clothing, etc.

The fact that you have a business mining Bitcoin is no different in this context from owning a clothing store, managing a venture capital partnership, or singing professionally.

Very difficult to prove they are smoking inside the unit as most smokers have cloths and other items that carry the smell(not much you can do about that)