They suggested to use ride share or bus.

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It's the easiest way to get taken for a ride by a contractor.

I've heard of agents riding around town just opening doors and hoping the buyer will pick something.

She has extra people living there, they are getting a free ride, they can pay for their own place to stay. 

Bigger concern is making sure you have enough buffer that its not going to be an issue riding the volatility out until the rents go up enough you don't care .

And he goes about doing this for a few decades then morphs into this note program and well when the notes cant pay interest the investors right away jump to he is a crook must be a fraud must be a ponzi etc etc..

We let it ride & then found it was her brother going through a tough separation so occasionally he needed to get away. 

My question is, would you just let this ride or does it make more sense to attempt to catch them while they're working and ask them to stop?

It's a ride that I don't care to go on, but hey, I'm probably a bit more conservative than most.