Carry interest of any debt secured by property.I don't believe "necessary" is a word in the statue.  

The seller would like to net the most but also carry a note after at least 50k in taxable proceeds, in order to defer her capital gains.

Ask the seller to carry a note, but I'd buy a SFH instead of a duplex, especially if the duplex needs remodeling!

But was advised to also carry umbrella personal liability.  

Quote from @Chris Seveney: @Brian CarberryI wish Vegas would carry betting lines for candidate agendas.

Pumps break, lights break, and keeping the deck and any deck furniture cleaned also carries costs.

Second lien positions carry more risk since they’re subordinate to the first lien.

While rental ROI appears to be attractive even after carrying costs, the 11% transfer tax when you sell seems like a turn off.

As you can tell, I'm not very fond of the overpriced "gurus"Carry on...

The way I look at it, it doesn't help you if you don't cash it out. if the property is performing correctly it will carry the mortgage all the while pulling basically cash out to put into further deals.