Many people asked me should they become a realtor.. my short answer was it will be much easier if you have an existing large network "100 plus professionals" or willing to work your way up prospecting everyday.. cold calling, door knocking or paying for lead generation tools online..

I calculate things up and very few tend to hit the $100/door/month metric... maybe my parameters are too tight (10% vacancy, 10% cap ex, 8% repair, 8% prop manager, 8.5% leasing fee)

Send Direct Marketing targeted towards the people in areas where most owners should have mostly a majority of the market value, an area that has 30 to 40 year old houses.Either mail them in a special envelope or colorful postcard or knock on their entry door and ask them if they want to sell. 

The big boys with 000s of doors may feel otherwise; however, I've only got a couple SFH remodels in process and I've noticed no significant cost increase from contractors or supplies. 

This will open more doors than you can imagine.

Your response is definitely a sign to take action and go knocking on doors to acquire a good deal and make things happen. 

"The Millionaire Next Door" and "The Millionaire's Mind", also not RE specific but mindset shaping. 

All windows/doors open up perfectly fine.

She ADDED A LOCK to the door so that our keys won’t work.

Who has experience renovating while a tenant is living next door?