Personally there is only so much time before the next uber-like app for barbers and hair stylist comes around where they go door-to-door like an on demand business.

I am STILL finding dog hair in this property and it was cleaned thoroughly by professional house cleaners.  

My largest to date is a 3600 sq ft quad, and a 6000 sq ft triplex.I have 0 commercial experience...This animal is making me pull my hair out!

Yes, they still exist but they are rare now and you are adding layers of hair on the deal with questions about contractors.

HOWEVER, I had to take the building with a tenant who started an illegal hair Solon.

Some ideas for that, insurance agent, tax preparer, hair dresser, bridal shop, massage, tattoo.

When we bought a property the sellers were not motivated until 2 to 3 days before they were going to lose it.. then it was hair on fire to get them done... and you needed CASH the wholesaler bit simply was a non starter.. irrespective of tying up a property when you have no money hoping to wholesale it.. think about your grandmother.. would you like someone doing this and risking them losing their home when someone who has cash could actually help them. 

If I didn't shave my head I would be pulling my hair out.

it was hair on fire getting it done.. but you talk about motivated sellers... 

Good luck with your real estate endeavors (and your hair !!).