In my experience, most of the online calculators are just taking an educated guess for you.

But if refinancing doesn’t leave you with enough equity for future deals, you might be better off flipping for cash and avoiding a lot of refinancing headaches in the short term.If you’re planning to buy your sister out and retain full ownership, you’ll also want to ensure that the numbers still make sense on a long-term hold.

Is the information about “In MA, tenants generally have 30 days to pay repair costs...” available somewhere online? 

The use of online classes has been increasing every year and are projected to continue to increase.

Have you thought about refinancing into a DSCR loan or have heard of the BRRRR method?

check the local municipal code, most are online.

To scale, I plan to build a reliable local team, leverage 25% down payments, and use strategies like HELOCs or cash-out refinancing for future acquisitions.Good luck!

The deals that I am doing right now though, I am basically getting the land for free, and building on, refinancing all the cash out at the end, and keeping the rental for basically no money into it. 

Then I refinanced down to a 6.6% rate but had to pay points but I think it was worth it because it appears rates are going to be higher for longer. 

You can find different strategies on how to find and reach these folks, such as driving for dollars, targeting mailing lists, networking with Realtors and other wholesalers, and having an online presence, plus paid social media ads, etc.