Make sure to call the employers.

Also, What do you consider growing to a moderate size?

Anything the size of a plastic wall anchor or smaller, you should be hitting it with lightweight spackle and use a damp sponge, not a sanding sponge, to take off the excess.

When parents employ their minor child, the child is exempt from Social Security and Medicare (aka FICA) - if under 18.

That does not require employment or job seasoning instead it uses the rents to qualify and you can take out up to 80% LTV cash.Use the cash to put down on the next 1-2 or more properties as long as the other properties are debt servicing themselves it opens up more opportuities to buy more future assets and increase your passice income.  

Size I believe does matter.

Hard money lenders have a good amount of flex when it comes to FICO score and typically the main issue that borrowers with low FICO's have is that their max loan size gets cut which doesn't seem to be an issue here.

Depending on the size and how difficult it may be to get to it, I've paid about $5-8k.

My son (age 24) however, is an independant contractor / self employed and is trying to buy a house. 

Plus I recently got a brand new calculator, wanted to see what out of state investors though the most important aspects of deciding between to similar rates cap rates in 2 varied size apartment.