@Max Bellino For smaller properties like your 2–4 unit multifamily buildings, an online cost segregation study is a quicker and more cost-effective option, providing sufficient accuracy for straightforward properties.

Find their marketing name and last I checked they were in the large stores in the U.S.  3.  

You may want to look at small independent stores.

.: As a contractor and flipper, I dont buy materials from retailers or online.

There are gurus out there who will tell you when seller financing to have the borrower sign a deed in lieu at closing so if they stop paying you can just record the deed in lieu. Every attorney I have ever talked to h...

the storage thing is pretty common, seen several grocery stores turned into that. 

Did you give her written permission to store personal items outside in a common area?

They make ordering items from different companies easy, and you get discounts from each store that has partnered with them. 

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

You may have to do this several times for all the different tasks being done.The only labor cost not covered by this type of online inquiry is drive time from the businessto the property, to the store & back for supplies and then back to the business address.