Low price multi units" are not friendly to "the year of passive income"Probably the biggest difference is your comfort with leverage.  

Right now, the 10+ property would be the biggest interest to me too as it would increase your portfolio the fastest.How is the area and building itself?

My biggest pet peeves are those, usually newbies, who blast out deals before they are under contract and those who do not know basic information about the property.

My biggest concern, owning 50% of the property could mean owning 50% of the mortgage as well, and if your partner screw up it might get to you, but you will need to provide more details to your lawyer.

It's your biggest asset right now. 

The biggest pain in the *** I ever knew threw me for a loop once when he said to someone thank you for your opinion, it has given me something to think about.

What if I spend the rest of the cash I have on hand to make the biggest “bang for my buck”, and instead of taking out credit cards, try and squeeze any equity out of it with a HELOC.

(If you don't have those, you can get reasonably priced cards from Vista Print).The biggest thing that almost everyone does wrong is to sit there (in their comfort zone) and not meet people.  

My biggest challenge is getting started with limited funds, I have 100k in equity in my home but would like to start out without tapping into it.

That is really where the biggest problem will be.