I am curious to know if anyone has had any experience renting by the room on furnished finder, I am having a bit of trouble finding quality tenants for my house hack and I'm starting to consider furnishing some of the rooms and listing them on them on furnished finder.

I would also invest some in tech start ups, medical companies and other start ups. 

We have a long-term tenant who has recently started having a guest live with them.

I'd start by talking to your neighbour and asking them to split the cost 50:50 saying that the longevity is reduced because their dog keeps jumping up on it. 

My wife and I are looking for a two family to start with for our 1st home.

(Before you start reading, I think the overarching theme of this question is that the definition of a Hard Money Lender and Private Money Lender has changed throughout time.

I started listening to BiggerPockets just this year!

And 2) It is like saying...Everyone eats food, so food has huge competition, so it is better to start eating rocks!

Understood - so say I sell house in Sep-24; then I can adjust my remaining paychecks to catch up to 110% of 2023 tax to avoid tax penalty or I need to start having higher withholdings now?

If anyone has any advice and direction of how best to start, I'm listening.