If you plan on buying and holding in say a great pm company. 

Maybe they're on vacation. 

Make sure utilities are available, and that you have tap fees included in your estimate, as well as engineering (site plan), architectural plan, and other bits you might need to consider for your market (landscaping and costs of sale, for example).

I'm currently reading David Greene's book on BRRRR and was curious about how you all go about planning or visualizing added rooms to potential purchases. 

While the offer sounds tempting, I want to ensure I capitalize on these contracts fairly and effectively.Here are my main questions:Should I entertain the idea of terminating my current contracts, or is it better to stick to my original wholesale plan?

We plan to hold on to them for a long time.  

Working with a CPA can help you navigate tax implications, and staying focused on long-term planning will set you up for success.

Make sure you have a lot of ducks and all fo them in a row. 5 year estimates on revenue and expenses, full business plan, licenses etc etc all in place before you go in.

I would pick a major tourist destination where it wasn't saturated with STR's already.That would take some research but you could google top vacation destinations and find a place you would go on vacation.

A HELOC could help temporarily if you plan to payoff the balance quickly and are planning to save on monthly payments in the short term.