How do you protect yourself from having the responsibility to buy the house you were "representing"?

Hi all, hope everyone is doing well and just wanted to introduce myself, returning  from 2005-06 when we did few flips (3) and few rentals (4) and learn some do's and do not's. 

Advantage being that you do not have to make a contingent offer if you find a house you really like....and/or it gives you time to move leisurely instead of in a rush.Anyone used this?

What do we need to do to get to the point that we don't need to personally guarantee each property/project loan?

For the flips I do or just the services I do in the area of changing out these windows I usually use Lawson but they are taking 10-12 weeks.

The tenants never asked if this was okay and just started doing it.

Quote from @Tyson Thompson: Your best option is to use a data site like AirDNA. 

They are pretty bare bones and do most everything via email but the price is right. 

I currently don't have an LLC for the real estate side and was thinking it would be easier to just start doing business under the LLC that I set up for Turo, instead of going through all the paperwork of setting up another one.Thoughts?

Do you have a relationship with a local commercial banker?