If you did a bunch of volume sure you can use it but doing deals every so often doesn't make sense. 

They offer bulk rates which can be useful if you're dealing with a sizable list.PropertyRadar: Apart from skip tracing, this platform offers a suite of tools for real estate professionals, especially for those in the western US.Tips on Other Types of Lists and Marketing to Homeowners:Driving for Dollars: This involves physically driving through neighborhoods, looking for distressed or vacant properties, and then noting the addresses to look up the owners later.Probate Lists: Properties in probate can sometimes be acquired below market value.

We can finish the work in 8 weeks.

We’re in the same process and having seen several quotes the spectrum can vary greatly. 

The wealth of knowledge and transparency that so many successful investors are willing to openly share is great to have that I've heard can be challenging to find in other markets.

You can get an idea by just looking at Google Maps and seeing how many are near you.

From a cleaning perspective, I can understand why any landlord would want to use a contracted cleaning process, no matter how clean the unit was at the time of move-out. 

Makes sense though - it's like pricing, it's very easy to price units in a condo building since they are all so similiar vs a custom home which can be very difficult to evaluate. 

Can't wait to see what I can learn here. 

You can learn to do this independently or get a rockstar REALTOR to lead the way.