I fail to see how STRs benefit anyone other than the owner.

Investments in Opportunity Zones can offer great tax benefits, but when combined with a cost segregation study, the benefits can multiply.An Opportunity Zone are areas that struggle with poverty and lack the necessary access to economic opportunities.

I could talk all day about the benefits to doing this.

We are trying to put my name on the deed and take her off without her losing her benefits and avoiding transfer taxes.

However, it ultimately depends on your risk tolerance and whether you believe the benefits of asset protection through an LLC outweigh the potential risks.

But it does vary wildly - I work with a larger firm, we have in house professionals who focus 100% of their time on state and local tax / sales and use tax, various aspects of international, employee benefits, trusts, estates, gifts, etc, in addition to various industry focuses - and as a result we charge higher fees because there is a significant amount of very specialized knowledge floating around that is at our clients fingertips as they need it. 

Sometimes its smarter to sell due to the tax benefits our country provides (stepped up basis).

Renter's insurance benefits you too.

As the borrower, you will typical pay these.One benefit is that a good HML will have local experience and be able to evaluate and confirm you have a good deal that protects everyone.

If you can definitively prove that the seller intended to deceive you about the square footage for their personal gain, you may be able to take legal action, but probably low chance of success considering you had ample opportunity to measure the home or get an appraisal with measurements prior to closing, and had your chance to negotiate the price based on square footage and all other factors prior to closing.