Many people say they never do, but if they can increase your interest rate 5 or 6% they might. 

Will your partner be upset because you are getting the better end of the deal living rent free(assuming you aren't paying rent).What if only your name is on the mortgage and deed, then the tax documents will all fall on you and your tax return and not his which makes it more complicated trying to shift income to him.If there are two people on the mortgage, it will impact both your DTI ratio's equally in full hurting both of your abilities to get credit in the future until the property is sold.Why can't you do the live in flip on your own?

Even when you exclude the ones who are simply renting out their own spaces - second homes, pre-existing ADUs, spare bedrooms, or their RVs, the number of people that started with less than we have is likely still significant.

Complex setups don't offer much protection for most people. 

I built a bunch of houses there an loved it.. prices have SKY rocketed there though holy cow. cant believe the appreciation there.. very under the radar but limited land and houses great place lots of money people and there ya go values through the roof.

Different people find that money different ways.

I don’t think there is much if any cross over, so while he forum may be a little more active it’s just two groups of people skipping over the others posts to get to theirs.

People who aren't skilled at negotiating will often give away their motivations in casual conversation.

Also thanks to all the people that participate in the BP platforms.   

A lot of people don't have a whole lot of interest in living in constant fixer-uppers, so you have to have the right mentality for that.A variation on it, if you want to live in better homes that aren't great rentals, is to, again, buy homes that are under market because they need some work, do the work, live there 2 years then sell for a profit and keep all of your capital gains.