I'minspired and always on the lookout for new ideas, trends, and success stories.

I currently manage a long term rental and working on a single family home fixer (will probably convert to rental in the future) in Cali.

One of the benefits is that being on the loan can help build his credit, which will be valuable for his future financial goals.

Both properties have a substantial amount of equity that’s essentially sitting idle.Would it be a good idea to tap into this equity (through a HELOC, cash-out refinance, etc.) to fund future fix-and-flip projects or purchase additional rental properties?

So you should create your own spreadsheet rather than count on a random algorithm to sort things out......think about it - do you want to trust an algorithm with your financial future?

Home price appreciation is still trending up, but cashflowing rentals are difficult to find for the most part.

I was going to add, as posted above, it's a great rate and stick with that local credit union for the future business. 

You can use this tool to estimate future property taxes: https://treas-secure.state.mi.us/ptestimator/ptestimator.asp

Income Levels: Will your AGI decrease in future years below the $150,000 threshold?

I am definitely looking forward to my future.