An an effective way to use a HELOC would be on a value add/BRRRR deal.

I'd prefer to use established tools for analysis rather than starting from scratch.

Agents who effectively outline their value prop will get more agreements signed and for a higher commission.

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.

Can be more effective and less expensive.

You'll end up spending countless hours trying to analyze all the numbers, and in the end you still won't know what house to buy.Our grandparents didn't have all these research tools, podcasts, books, and other resources, and they still managed to invest in real estate. 

This flexibility allows investors to move quickly and adapt to market conditions, making it a valuable tool for real estate deals.Let me know if you’d like assistance with your financing options!

I also mention that alterations like this is effectively a cancellation, and so close to the dates effected hurts my operation and should not be possible per cancellation policy. - Guest insists booking was made because of moderate cancellation policy.

The current incentive structure makes it very difficult for an assumable mortgage to actually be a tangible tool for buyers. 

Understanding where the market is can help you make better decisions.Use Helpful Tools:Real Estate Apps: Apps like Redfin and Realtor.com offer a lot of info on property values and market trends.Deal Analysis Tools: Consider tools Biggerpockets calculator, they offer a variety of calculators that are very easy to use!