If I say yes, which I'm leaning towards, would a written text for the above sentence cover me or should I add an addendum to the lease?

Now, re-read that last sentence.

And I'd probably make it about asking them if everything is working okay and drop in a sentence reminding them how to take care of the septic so it doesn't back sewage up into the house.As long as you have reserves in the unlikely event you have to dig up the field or address any sewage backups, and make sure they can't drive or park on it, etc., it's not that horrible of a thing to deal with. 

In the next sentence they will tell you they are worried if they will ever be able to retire.  

They have this guy the Cowboy Closer who is so un-inspiring as a guest, can't even get a sentence out about investing other than he was a truck driver.  

Felonies must be at least 3 years old after completion of the sentence and a clean record since. 

The problem with them is the limited number of apartments available compared to those who need them, and the violent criminal element using these places as homes between prison sentences making them dangerous to other who live there.So there are solutions, just not perfect solutions.Good Luck!  

Since you are not getting many applications, I would also ask myself the last sentence that @Kyle J. posted.

Dang, that was a long sentence.  

An attorney may have standing in his arguments as to complaince, I can tell you regulators don't care, they will be looking at the big picture and the intent behind the transactions, not so much to a sentence as a wiggle room ploy or some disclosure to avoid responsibility and again, he may be able to save his tail, but can you?