The larger investors investing millions tend to read in the back ground and then contact me privately on BP to talk about investing.

Maybe exchange contact info?

I ended up being in contact with what I feel is a really good real estate agent (asked me my why, always tried to provide as much possibly without me asking, and provided information I asked for fairly quickly).  

The lenders will ask all your personal financial data anyway.But to answer your question - get the card that has cash back, no annual fees and low interest rates.

If you stick with mainly multi family properties you could contact the owners for all of those and they are very likely landlords.

Something you may want to try is contacting some local wholesalers buy calling the number on bandit signs or "As-Is / Cash Only" postings on Craigslist and explain what you are looking for and ask to be added to their buyer's list. 

Contact me if you’re interested and timing is right. 

I found your contact info out there and I will be in touch as we've been busy trying to get a property under contract.

@David LaPlante from where you got this data?

If it is not redeemed in 3 years you can get the deed.If you want a wealth of information I have a contact for you...