I understand your concern it’s always important to ensure everything checks out.

They remain available to assist investors throughout the investment lifecycle, whether it involves refinancing options, addressing financial concerns, or facilitating future funding needs.

Kissimmee is still a strong STR market, especially with Disney nearby, but competition has increased.The smaller pool and backyard might be a concern for some guests, but the privacy from the freeway could be a nice bonus.

What sort of issues are we concerned about?

I guess my main concern with the Tulum area is it seems there are soooo many new developments going in (an agent told me 151 new developments over the next 4 or 5 years), I think the competition for vacation rentals will end up like Playa del Carmen (saturated and cut-throat with competition).

If the answer to both added questions would be "yes", then you have a potential goldmine here.Combining the seller's concerns, and the reality of a big down payment being a negative to the seller (see Q: 1), you should be able to set the terms, with a lower DP, and controlled interest rate, to have this property CF and,...be able to sell the package to another REI down the road,...as long as you buy this using an LLC (a new one). 

Now that the 90 day deadline has expired and we haven’t received certified equity nor an update informing note holders of their status, concern is definitely growing. 

For example, I am a little concerned about some aspects of the business cycle recovery and a potential for a double-dip so I lean toward the safest part of capital stack which is debt (or low-debt equity).

Quote from @Eli Ling: thank you, what do you think of this email:I understand your concern about the ceiling leak and your assumption that it might be coming from my apartment.Since we both want to resolve this issue, I suggest contacting the HOA to involve a neutral third party who can determine the actual source of the leak.

If high rates are your primary concern, you could potentially look around for a similar arrangement.