It gives you a sense of your area, creates your own unique list, and is pretty cost effective as well!

One of the great tips I received is to check out the Bigger Pockets podcasts -- it was an awesome suggestion and I've been listening to several... they are fantastic, I love hearing the stories and getting to know the interviewees and their unique ways of doing thing with real estate.

They didn't start enforcing building codes on manufactured until 1978 but I would try to buy something less than 20 years old.Educate yourself on how they are unique.

My step mom loves converted church houses and I agree they have a lot of character I really love working on unique old houses in my remodeling business.

All -I have a unique opportunity with a company acting as a property management company, who happens to offer luxury accommodations for cannabis retreats in legal recreational markets (think STR/LTR property management firm). 

Also, that portion is a VERY small part of her work day, so its more or less just a time-filler and piggybacking on other tasks.

That was a unique market back then.

Make sure to rent the right equipment for your task.   

So far at least in 4.0 you can't save many filters to named filters (very odd) and saving a list co-mingles prior saves into one mis-mash list.PIN has a few unique data types;  zombie = vacant and has gotten NOD,  the other pre forecslosure scenarois, FSBO (no data in my area), Expireds / MLS (no data in my area, MLSs are PIA to deal with so not surpised), and several types of bank owned including shadow inventory. 

I use a combination of BP calcs (not the most user-friendly if you want to make changes or run "what-ifs"), DealCheck.io (I like the UI a little better), and spreadsheets (customization for unique cases).