After that first time, I implemented that habit into my morning routine now and I really look forward to doing it!  

Having traveled to Eastern Germany, I have seen what public housing under a Communist regime looks like, and I want no part of it. 

If it is an older building noise will travel and there are some things you can do but the building doesnt change.

She's an older women who travels a lot, so she's always in and out of the apartment.

As such, skip tracing often involves accessing the following: Phone number databasesCredit reportsCredit card applicationsJob applicationsCriminal background checksLoan applicationsUtility billsPublic tax informationPublic records databasesCourthouse recordsDepartment store loyalty cardsAir travel recordsDriver’s license/vehicle registration departments

@Adam ReadPNWIG is pretty well known, don’t know if they are willing to travel but at least make a referral.

Number of first time travelers with airbnb is increasing drastically (on my properties based on 4 years of experience) and in fact they are not 1st time travelers...

Things like: business or real estate seminars or classes, business or finance or real estate books, travel/vacation expenses to go look at real estate, meals when I talk about business, etc.

However, I do have to wonder, wouldn't the people buying these liens have aggregated some data to inform their future investing habits?

You have to figure out how to build a solid financial foundation before you start stretching yourself through investments.You should also find a local real estate investors group, even if you have to travel to do so.