Thinking from a banker’s perspective, why wouldn’t you take a home equity line on your personal residence?  

It was my primary residence for 7 years until I moved out last August.

I own a condo in which my wife and I reside. 

In addition, if the C/O is for 1, and now will be 2, without the change and approval, the water and electric utility would not furnish you additional meters.According to the city property maps, the plot is zoned to allow either single family or multi-family residences without special allowances needed.

On FHA, you can do what's called a "non-occupying co-borrower", meaning the co-borrower is not occupying the property as their primary residence. 

Either way, we don't want unhappy residents in our houses.

If a family friend lends me $30,000, for example, to buy a foreclosure, where does the lien/title reside?

Found a single family residence for 105 list price, arv 230 with 40k reno, i figured i would go in 90k max offer but submitted a 70k offer, the bank rejected it lol.

I've used the house flipping calculator here on bigger pockets, although I'm thinking the nubmers would change a little big given the fact that it would be my primary residence for a minimun of 2 years.

Was you first property a conventional loan as a primary residence?