E Equity, how much of the home will you own on day one.  

correct but in Shilohs model there is forced equity turn key model there basically is no equity or negative equity if one has to sell within 2 to 3 years as transactional cost will eat your equity.. 

However, your issue would be lack of equity.

Or, depending on the property you could go non-QM with like a DSCR loan and close in an LLC or partnership.

Regarding borrow's DTI, Chase thinks that this item is not that important.I wonder will my high DTI impact the loan underwriting?

I also can take out a home equity line of credit on my current home....but I need direction. 

OO loan seems like real long shot. 

Quote from @John Davey: Id appreciate any help, as ex. if i take out say 100k home equity loan and use 50k each as down payments/cloing costs my understanding is i cant deduct the interest?

Financing and Exit Strategies MatterMany house hackers use FHA or low-down-payment conventional loans.

For comparison, a Navy Federal FCU personal loan will be in the 15s%