I am married to a successful interior designer who serves luxury clients but can work with me to make rental properties look great for half the cost with her knowledge of what makes the most impact.

I’d like to point out that when you buy a property in another market for use as a short term rental, you can designate it as a vacation property and only need to pay 10% down.

We use Streamline which is a legacy provider but it is cumbersome and designed for larger scale PM operations (trust accounting, owner portals, etc etc).Just a few integrations we use: Lynx (locks), BookingPal (channel manager), EZCare (HK/Maint Ops), RevMax (Pricing) - There are more, thats off the top of my head. 

You need to drill down deeper, R-2 is single family as well as R-3 and R-4, they are multi family in the sense of being more than one unit, R-1, but the federal designation does not change until there are 5 units or more.

The management LLC does literally all management activities-- hire PMs, hires contractors for renovations, hires the legal experts for other stuff, buys STR furniture, hires interior designers for STRs, hires pest control, etc.

Similar for adult children still finding their way.  

Websites like Architectural Designs, Houseplans.com, and The House Designers are popular choices among real estate investors and builders.

What I'd bring to the table would be researching and sourcing properties, cash for down payments and other expenses, and design and some finishing material sourcing.

@Noah Bacon, does the tool kit include design, pricing, bidding, and management features or just the HD Elite discounts (which for some reason do not kick in for me)?

It will have to be professionally designed.