One unit would be at the font of the building and would include a one or two bedroom unit above a cafe or retail space.

I would say chances are good you'll find a deal in that (100) too.Only variations here would involve you being decently tech savvy, creating an excel sheet, then mail merging the list into Word and printing a handwriting style font onto your envelopes to mail.

I used amazon.com for the 20lb yellow lined paper and the invitation styled envelopes.Myfont.com for the handwritten font that it installs into your word program for you.

Sounds like a great start, nice to see a post where actual movement has occurred instead of 50 posts trying to decide on the right font for a mail piece.I've got to ask, why are you avoiding trusts?

It looks like the "hidden" text had the font color changed to white (to match the background) and new textboxes were added with the fake info.   

We've also found that a handwritten font on an envelope takes nearly double the amount of letters to get a deal done.

However, as your quantity mailed gets larger you may want to consider mail merging and a handwritten font.

You can automate your letter writing to be done on a computer using a handwritten font.  

When i got my "yellow letter" in the mail, i was horrified to see that it was the super fake looking handwriting font with the barcode on it in a white envelope and the white "handwritten" letter inside didnt make it better.

Use large fonts (size 12 or 14) so they can easily read your message.