I'd only add to get a professional inspection done with a very thorough team.

Then there were some issues with the inspection report that ruined 3 contracts prior to me getting involved.

Buying through an agent may provide more transparency, while sheriff sales and auctions can offer deals but often come with risks, like limited property inspection or legal complications.

Then you'll need to build a team of contractors to handle renovations and to help with things such as property inspections.

It was challenging to start.My realtor was not on my side and I trusted her to much, she said the house was fine, her husband did inspections and said it was fine and not to worry, the ARV was double the house value.

This way they can't claim ignorance.I would also require a move out inspection and make it the day after they are supposed to be moved out. 

If your tenants aren't looped in early, it could make access for inspections tough.

Once the tenant applies for the unit, you'll have to work with the tenant and Section 8 to get approval, which always includes an inspection of the unit.

I would notify her in person and in writing (big note on her door) including quoting the clause in the lease where she is responsible, and tell her you will be inspecting to insure the heat remains on, high enough to protect your unit, or she will be breaking the terms of her lease and also liable for any damage done in the downstairs unit as well.

Again, I love Rods show... but after inspecting his program from the outside looking in over the years I must say that it does work.