Some improvements to the property are:Exterior steps and walkwaysWasher dryer added in all unitsNew stainless steel appliances: dishwasher, microwavehood, fridge, stove  (all the old tenants owned their own)Flooring for the garden unit, refinished the other unitsGranite counter topsPatch drywall and fresh paint on walls and trimUnexpected items list to name a few:Foundation cracks - fixed nowBathroom vents not actually venting - fixed nowRoof leak patch - heavy rains following closing made it apparentAttic plumbing came apart in the walls - previous contractor may not have properly glued?

I had a junk removal guy come to give me an estimate and he said he wouldn't take the steel cartridges (which, btw, are quite heavy.

I believe my main focus will be on houses that are between 2-3 bedrooms with less than 1500 square feet as I would like to keep as much of the effort "in-house" as possible, as well as keeping purchase prices around $20K and selling prices around $60-80K, with renovation costs at between $10-20K for materials as well as a new roof with a contractor- unless I start putting on my own steel roofs which I can do myself.

@Annette Steele welcome to the BP Community. 

There is a school a block away and a Walmart, Ross, Harbor Freights, Dunken Donuts and Goodwill in the adjacent areas (all 0.5 miles away).This property was stripped down to the studs and has been completely redone with granite counter tops, stainless steel appliances, new carpet, tile, heaters, HVAC system, water pipes and electric wire.

Are we talking stainless steel and quartz or more vinyl and white appliances?

I've never done anything more than just put in a bar, usually chrome steel works well for such a wide span.

Thank you @Matt Steele !

@Bob Hines -- That's what I'm thinking... installing security doors with steel frames, in addition to the regular doors that I already have, to enter the basement.

If you don't want them putting it in your mailbox, they can put it under the mat, or put a rent box/slot on your door that puts the rent safely inside your house.Honestly I don't get it.Almost all of my tenants pay electronically, but I do still have 1 or 2 that bring me checks.