He said it's common for people with kids.

I wanted to mention that strategies just like these are commonly utilized by the ultra wealthy in order to do a number of different things.

A lot of your STR success will depend on you, your systems, your rules, and your common sense.

No black mold, only common mold. 

In addition to numerous tradition RE related investments (most individually owned but some as LP), here are our unusual investments (both are RE related, but not what is common on this site)- I have mentioned this one a few times on BP, when fracking was just starting to be known to the general public (near turn of century), we purchased mineral rights in North Dakota.  

It seems like interest rates are most common, so that's what I'm leaning towards, but is the ball in my court regarding the terms or in the investor's?

My building shares a common wall with a neighboring property.

It's pretty common that if someone is wholesaling, they are going to sign a contract to buy your house and then sell (assign for a fee) the contract to someone else.

@Efrem Debesay  Metal roofs do not seem to be as common in the city but, they do last longer and are less likely to have any leaks with one.

I know its pretty common in short term rentals, but I'm not sure about the legal implications.