Quote from @Collin Hays: I don't manage short-term any more, but can't you include this in a written rental agreement that the guest signs at the time of booking?

I need advice for creating the lease to include guidelines and wording on sharing responsibilities in the common areas. 

Apply the 70% rule to determine your maximum allowable offer, then negotiate and get the property under contract, ensuring your agreement includes inspection and financing contingencies.Arrange professional inspections to uncover any unforeseen issues, using these findings to negotiate concessions or confirm your repair budget.

Again, not unless its actually that your gross income (including cleaning fees) is 100k a year and your gross rents are actually only 75k. 

Contractually, I'm sure I'll be on the hook for something based on their PM favored literature, but can I contest that they have done absolutely nothing for me, including not paying me as my defense?

We don't allow any "deal-making" in the forums, which includes advertising your services or properties, looking for partners, etc.

You would work with other lenders and do a participation agreement, but many of them will require you to put in 20-40% of the money, have a net worth of 2x what they are including as they will want you to buy back the loan if it goes into default.3.

These are the different properties that are included in the 1031 exchange requirement: commercial buildings such as offices, schools and different establishments that are important for the population, as well as single family rentals, multi family rentals, industrial facilities, and even raw lands are included in the like-kind.

My aspirations include becoming a real estate developer, so I want to learn as much as I can.

Make sure to also include in your calculation all the associated costs of those homes (maintenance, cap-x, management, vacancy, etc) then include the selling cost of the home since the appreciation isn't unlocked until you sell the home.