California generally has more complicated taxes than other states, and as a CA resident, you will be taxed on all your income in CA versus just the nonresident income in the other state, that you either want a CA-based CPA, or one who is familiar with CA laws and prepares several CA returns.

In our case, in order to avoid complications, most of my clients just lend the funds to an investor/flipper.

Usually a cost segregation complicated the 1031 process somewhat, but at the looks of things that process just got more complicated on its own.

A third solution would be to partner with someone and have them put the property in their name, but that can get more complicated and you'd want a lawyer to write up an agreement.

I have a contractor that I use for jobs that are too complicated for my boys to do. 

You're over complicating this. 

Client gave me a project to do that seemed very complicated to him. 

As others said, read up on local laws to make sure you and the tenants are following them.The shutdown has complicated things, but give them notice that in 60 or 90 days (longer than you'd normally have to do) they need to make a decision and give them a copy of the lease now. 

This gets a little complicated in the case of a house hack, since if you're claiming a percentage of expenses and taking depreciation you won't get the entire exemption.

They are much more complicated than what most resi brokers are trained to handle.