The partner’s sons will not trouble you much, but look out that some boys poorer, much poorer than yourselves, whose parents cannot afford to give them the advantages of a course in this institute, advantages which should give you a decided lead in the race–look out that such boys do not challenge you at the post and pass you at the grand stand.

For example, a horse or a llama may be rejected from a small studio apartment.Second – if the building has 4 units or less and the landlord lives in one of the buildings.Third – it is a single-family house that was rented without a realtor.

Not to beat a dead horse, but the risk is actually pennies to save dollars.Say you have a 'grey area' tax issue for $100. 

My biggest point of view on your initial message though is that it suggests to me that you have put the cart before the horse a bit.  

It's their fault, and the power lies with them to reverse their poor past choices and pick themselves up a bit by their own bootstraps.You're going to tell these new tenants that what's primarily wrong with them is not a legacy of a crime against humanity in the form of three hundred years of black slavery, followed by an unfunded emancipation that turned a huge number of Americans into desperate economic refugees based on the color of their skin, followed by a legacy of organized race hatred, bigotry, pseudoscientific and religious condemnation, and of course overwhelming and widespread intimidation and coercion, followed by a series of failed half-hearted half-measures coupled with an absolute refusal to consider slave reparations and the most lopsided minority levels of poverty and incarceration in the developed world.You're going to explain to these black folks that all that is of secondary importance, and what's REALLY important now is that they get better managing their money so they can hand it over to you more efficiently and you won't have to work so hard to get it.

We have horses, goats, chickens etc, so we aren’t really in a position for another house hack.

Fortunately, every few months I realize why he makes so much money.But, please, if you want to go ahead get on your high horse to preach… Go right ahead.

Here it is from the horse's mouth: yes, you can use the rental income, in nearly all cases, including when it hasn't had an opportunity to appear on ANY tax returns yet.

Don't worry, If this were a race it would be a marathon not a sprint.

If that's what's going on, then I feel bad if I'm "looking a gift horse in the mouth".