Direct mail to this address for 8 months.

I have one more question whom to write the mail to ?

If a property is on the MLS but you're not sure if the listing agent is being truthful or passing along your offer, can you use Propstream (or something that others recommend) to mail, email, or call the owner directly with your offer?

SMS, Direct mail, facebook ads? 

You'll either need to write and mail a check or call and pay with a card if they are set up for that.Is it for a contractor who is doing a renovation that will be 30k?

Mail it to him with the handwritten letter.

It's calculated as the ratio of your total loan amount (loan amount for purchase + loan amount for your rehab) to your total costs (purchase price + rehab budget). 95% is a good target.Avoid application and other upfront/junk fees. 

You're going to buy some lists, like a preforeclosure list and mail and call and mail and call and mail and call until you get them to meet with you and then you strike the deal. 

marketing such as google adds, Facebook, direct mail and I'm sure the list goes on.

Send a Lease Violation Notice immediately - by mail with proof of delivery required (cheap date through post office) and or affix the notice in a envelope with his name on it on the door of the unit.