First try at direct marketing - hand written or printed?

[Silver A.]

Please help. I found some good ideas from searching, but there was not quite a tread like this.

Next week I'm planning to try direct marketing for the first time. Yellow letters to all mailboxes in an area with a short message - the goal is to see how it works in my area and to generate calls.

:idea: I'm going to cover the whole area with a general message, so far I have had best luck with newspaper ad "Looking to buy an 2/1 or a 3/1 apartment in need of renovation in (city x), phone no 123 456".

(English is not my first language :) and I do not want to sell with an aggressive and emotional message.)

Should I go with something like,
1) "I buy apartments, call me 123 456"
2) "Hello, my name is Silver. I am looking to buy an apartment that needs renovation in this area. Please call me 123 456"

And should I just print the message to a yellow paper? Or have someone with rather-nice hand writing write the letters instead?

Which message would most likely generate calls?

( I'm flipping apartments since there is a lot more demand for them than for houses in my area. Feel free to substitute the word "apartment" with "house", if necessary. (This thread is not about HOA fees or "house vs apartment".))