Real estate agents are well aware of this fact and treat one preapproval letter as toilet paper, and the other as a check waiting to be cashed, accordingly (and obviously advise their homeseller clients as such).

Treat your real estate like a business, take care of your properties and tenants, and protect your assets, just in case...These tenants just got awarded $1.6 million for a bed bug infestation that was not addressed promptly by the landlord: https://www.nytimes.com/2018/04/04/us/california-bedbug-lawsuit.html?

If it is treated as a business, you will probably report it on your personal tax return anyway, on Schedule C.

In the last couple of years, we changed our perspective on this, and now treat tenants with respect, and therefore have the right to demand the same from them.If they disrespect my property, then they have fooled me in our screening and such. 

If tenant paid for March and April then they need to produce a receipt, no receipt they didn't pay and treat it as non payment.The other option is you don't create waves and you move forward.

It’s not easy but it can be very fun and very lucrative if you treat it like a business and do the things that others don’t want to do.

I treat both equity and debt as something that needs to be paid off. 

<4 units are treated as a SFR when it comes to conventional loans.

Treat it like a business, you may feel bad at times, but at the end of the day you aren't their friend, and this is your money on the line.4.

Fannie/Freddie residential lenders won't touch it because they want to treat it as two houses, not one quadplex.