I don't do physical work on the property, but I do detailed design plans, and select and buy all the materials.

Take the time to explore various house hacking techniques and select the one that best fits your objectives and available resources.Good luck!

He owns STRs and he co-hosts selective luxury properties for other owners too. 

As result, some of those companies are sometimes becoming more over-protective and more selective in working with a new investor that they don't know before. 

Then we do a manual J (heat load calc) which will bring you to your manual S (size/system selection) and finally a manual D (duct design).

They selected a So Cal title company and a escrow company and said it's too late to change now since we are going to close on Monday.I am purchasing this house by cash, and I see they listed the lender's title insurance for $1650.

What's the criteria for selecting? 

Not many syndicators are willing to take a personal loss if the deal goes south.3) Deal Selection and Underwriting.

While you are not required to have a property manager for your long-term rental (short term is a different story), you can only handle administrative functions such as making phone calls, paying bills, selecting a contractor, etc. and must be completely hands off. 

These include market analysis, property selection, guest communication, listing creation and optimization, and more.