If you aren't interested in providing the information for investors/lenders to analyze, and you and your wife like the neighborhood, you might consider knocking on doors, dropping postcards, or visiting local coffee shops to see if there's interest in partnership. 

I'm looking to start sending out mass communications (texts or post cards) in a Wisconsin market here soon and wanted to know what lead services people have had the most success with and why.

Whenever I make an improvement to the park, I plan to send a post card out to all of the neighbors that I have talked to, to let them know how my business is improving their neighborhood, and (hopefully) bringing everyone's property values up.

You also may want to market directly to distressed sellers via hand written letters, post cards, door knocking, etc.

Learn, talk to other wholesalers, send out postcards, return the calls as they come in, go on appointments and make offers. 

I spent a considerable amount of time drafting a letter (not a postcard, not a yellow letter) that I was proud to send these people.

I would look for vacant/distressed properties/older looking properties, find out who owns the property, and send a postcard to the owner asking if they would like to sell their property.

If you can get owner data for the types of properties that you think you'd be interested in purchasing then you could try sending them a letter, a postcard or some type of professional memo. 

That is also why the dentist sends out new postcards every season with a new photo in a seasonal setting. 

Smith a letter, or a post card, or use an app, etc to contact him to see if he is a motivated seller.The above example is a broad overview of what you might find.