For instance, maybe you give them a certain cut of the equity and cash flow for cosigning on the loan. 

Now my understanding on how many an individual can house hack depends on each individual case ; for instance is the second home close to the first ?

I've seen instances where the tenant receievd the eviction notice on their door and in their mailbox and they left without any costly remediation needing to be done.

If just depend on what your goals are.For instance, if it's purely to place the Deed into another entity's name, you can use a trust, which is likely cheaper to maintain.  

@Daniel Parrella  Recording the option is a something I do in these instances.1.

For instance, before getting involved I was thinking of buying a fixer upper, fixing the house and doing all the work myself and get paid.

I am assuming this is the language used for a rental property, so 3% applies for this instance, but I thought the seller pays for the commission. 

@Ravindra GandheListen to your PM in this instance and replace or install a new heating system

For instance, the market I am based out of, Nashville, has seen relatively low fluctuations in price when compared to other markets.

So for instance if I can get 3% a year "risk free" by buying 10 year treasuries, I would be a little nuts to buy for cash an apartment building in Seattle for that same return because there is all sorts of risk in an apartment building.2) Supply and Demand for that Asset class.