😀But I have to get to it since the right choice here doesn't seem to be that obvious. 

I'd suggest narrowing your choices down based on your long-term goals and what excites you most (sounds like hands on flipping).

May be a tough pitch but can happenThis is also pending sufficient space exists to add them.

It’s completely normal to feel a bit of analysis paralysis, especially when you’re in a position to make a move.The choice between a short-term rental (like Airbnb), long-term rentals, or a duplex comes down to your personal preferences and lifestyle.

There are many reasons why a cash out refinance is the better choice but there are a couple of reasons a Heloc can be used.

Same time, I can let her stay til the family find new home but afraid if she keep complain after lease is terminated.As I have another project, I am ok if they live quietly but what will be the choice if the lease is over and tenant still live there?

Without a diligent and responsive professional, touring, offering and closing on a prime investment property of choice is less likely.

I'm looking at fixer uppers that are considered livable (heat, plumbing, etc) and I think my DTI will be sufficient once I get renters on my current quadplex.Just trying to plan ahead, thanks!

I need some advice on which choice makes the most sense starting off?

I’d conclude that a MTR is a unique market itself, sufficiently different from convention LTR and from STR market to merit it’s own category.