Without complete financials up to that point, extra work (and headache) will be required to get everything straight after years of failure to keep complete financials.There also might be an asset protection wrinkle by not maintaining complete books for an LLC, but I won't comment on that as I'm not an attorney.

Many investors aim to jump straight into turnkey properties or multifamily deals to scale quickly, but the truth is that most people don’t have enough liquid capital to maintain consistent growth this way.

I personally own/live in a historic home and I can promise you this: it will cost you more - a lot more - to renovate and maintain the property. 

While the lease will most likely include maintaining the units themselves, these organizations are not going to manage it anywhere close to what you could and should do.

Ensure the STR’s projected income comfortably covers new debt, even with conservative occupancy rates, and maintain reserves for market changes or vacancies.

This could include an easement(ingress/egress), shared costs(s) to maintain the well, or usage/owner. 

Since I’ve been syndicating real estate debt and a few equity deals for 25 years, I’ve made it my business to maintain a constant “overview” of the “product” being offered.  

., as well as most countries require the settlor to give up control and benefit of the asset in question for the “asset protection” aspect to be legally effective, some countries (usually very small countries) have laws for trusts that theoretically allow some control (or at least input) of the assets by the settlor while still maintaining the asset protection feature.  

There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.

It's easy to obtain, costs very little, and doesn't require extra, on-going effort to maintain.