@Mark S. 

Quote from @Adam Simpson: Quote from @Josselyn Jorge: @Mike S. would you mind sending me a version of your log book for reference?

I have clarification that it is now allowed for the transfer of title into an LLC that you are the majority owner of (borrower(s)) without any seasoning period if you used the second home occupancy loan.

Quote from @Kevin S.: Quote from @Steve K.: Red team vs. blue team is getting kinda silly IMO.

I'd like to start small with 1-2 STR tiny house(s) or other less expensive "alternate housing" options (yurt, airstream, etc).

One property in particular has 4 years left on abatement but the 2019 assessment is 243% higher than 2018's, and all of the other houses on the block show similar assessment increases. 

If you pair the dropping of the rates and same amount of inventory with letting the population get used to 6-7% rates then drop them back in the 5's the market will be flooded with buyers again. 100% agree here.

I've only done 80% CLTV HELOANs (not HELOCs) on investment properties, but that's not an interest-only loan and usually rates are in the 10's at that high of a leverage. 

If you're trying to buy a primary, househacking with a multifamily purchase MAY help with the DTI situation - it will just depend on the income from the non-primary unit(s). 

Simple answer, yes these are all normal things to utilize.However, as to how they are used - that will depend entirely on where you are going and what you are trying to accomplish.For tax purposes, given it is generally a bad idea to use an S-Corp or C-Corp for holding real estate, any other tax structure will have absolutely no difference from one another - IE an LLC taxed as a partnership, an LLC wholly owned by you and disregarded for tax purposes, owning directly, or owning through a revocable trust - all of these have the exact same tax result at the end of the day.