Example, mail to a relatives house and ask them to call you when the mail arrives.

Since it is a standard form, I assume when we arrive at that point we can both sign the document in the presence of a notary.  

I'm assuming that if you included the closing costs into the total cash invested, you would arrive at approximately 13%. 

Hi, I find that the basic Mortgage Calculator on BP arrives at a much lower monthly mortgage estimate compared to the monthly mortgage estimate which is calculated within the Rental Property Calculator.

I've got a roll-off dumpster arriving Friday to assist in cleaning things out. 

Only a very new Realtor would be willing to do that.If you want a top quality Realtor to work with you, my recommendation is a) find one at a REIA/real estate investment group and b) when those weekly or monthly search updates arrive, do as much as possible research beforehand to make sure it's worth wasting their time. 

e.g. send X message 5 days before they arrive, send Z message 2 days before they arrive, etc.  

Question for investors with buying houses unseen or no interior access,how do I arrive at the maximum offer price in this case?

Tell them the police will be arriving to arrest them.

If you handle your showings yourself, when they arrive and come inside you’ll be able to detect the smell of smoking on their clothes.Nothing illegal about that.