I'm looking to do a cash out refi on a duplex I have, but I cannot find any reviews online or much of an online presence for them.

I would restate that the lease will remain in place until such time that a new tenant is selected and moves into the property.This approach will ensure your cash flow while acknowledging that 'stuff happens.' 

Low barrier to entry, low taxes, landlord friendly, and areas that appreciate + cash flow. 

I've seen many people suggest a cash out refi but I like the flexibility of the heloc.

It seems like the shortest path to cash-flow with the less out of pocket expense. 

So seems like a decent play for cash flow but not much for appreciation.

And I would like to stretch it out longer to improve cash flow.

Then over the course of the first year or so, if you could raise the rents by a total of $1k/mo (they are currently $2k, $1k, and $1k), then you might be able to pull out about $60k-$80k in a cash out refi. 

It has a lot going for it from a long-term rental/cash on cash return perspective, but I’m not too sure about short term rental demand and occupancy.

How do others manage to create positive cash flow from MF properties with debt?