Looking to put together two type of letters one for investor and  old time landlord . marketing the off market real state hopefully can get a seller finance deal. my goals is 10 homes a week . any flies or help ?

Should I write a letter and mail it to the house hoping they have relatives who will read it. 

There are some good areas in North Omaha too, but a few blocks can make a big difference.I like the fact that you are jumping in and taking action, I just want to give you a word of caution about due diligence.

Agree with @John Anderson , and suggest getting a pre-approval letter from a lender for proof of funds (for amount you think the house is worth) to show your seriousness. 

Hey man, my partner and I have been getting our cabinets and countertops from this guy Jack on the 1800 block of Washington ave.

I even write my own very effective 3 page hand written yellow letters...and have done a few for a couple other wholesalers :) I have to say I love everything about REI and writing my own ebooks about topics pertaining to real estate...

That's why he is blocking the inspection.

The plan is to rent the first unit to a full-time tenant and the second unit as a vacation home given that the property is only blocks from the beach.

If you are going to finance deals have a pre-approval letter ready when you make an offer.  

They want you to have skin in the game.The bank's term sheet or commitment letter will state that they will lend you the lessor of XX% of the appraised value or purchase price.