Skip trace the phone numbers manually then give potential sellers a call to see if they have ever considered selling.

If this is low end (less than $1,500/mo) then feel free to skip ice maker, otherwise it will pay for itself with shorter vacancies by “winning the tie” with other rental properties. 

Are there any real estate agents out there performing lead generation by building list and skip tracing for contact info?

Great way to skip all the development of the land.

@Daniel Rosas I use REIPRO & Whitepages to skip trace & it’s pretty accurate.

I've compiled a list of 900 or so properties, skip traced them, and have been cold calling these owners.

Skip the testing, you already know there is water damage which is always a potential for mold growth.

If you include door-knocking, I can assure you that it works.Here are the issues, as I see them:All sales and marketing, including useing the telephone, are merely media; a substitute for nose-to-nose, toes-to-toes direct to person selling.Strategies like direct response advertising such as mail, requires the recipient to read an envelope or card, perhaps open a letter, make snap decision as to their interest, and respond by calling (offline) or going to a website or squeeze page or similar action.People who are difficult to find (skipped, frequent movers, etc.) are less likely to be reached by mail, let alone respond.

Then onto skip tracing.

@Aleksandr Shmidt, either try the free version of public/county/... records, or skip trace the address