You can learn to do this independently or get a rockstar REALTOR to lead the way.

I'm a partner in an Independent Agency that represents Steadily along with many other companies. 

We had to bring on an energy audit firm to test and certify the work before and after construction.Beyond the planning, permitting, and historic reviews, the rest of the project runs as any major renovation projects.

Own a few rentals and hoping to be on my way to financial independence soon 

There’s going to be sellers suing their own agents for refusing to work with independent buyers. 

You can learn to do this independently or get a rockstar REALTOR to lead the way.

Instead, I would pour through VRBO listings and audit calendars and rates to get you a picture you can feel comfortable with. 

Quote from @Michael Plaks: Quote from @Kory Reynolds: For my clients real estate businesses they pay between $4,000 and $650k purely for tax prep and tax consulting, Tell'm I can do it for $645k  ;) Do you want the audit work too?

While separate accounts sure helps with the audit trail, it's not necessary if you note the reason for a a deposit and withdrawal on the drafts or "source" document. 

Step by step you are working your way to being an independent player where you can do the deal on your own eventually.