Consider partnering with a builder on the builds. 

Some lenders will only allow you to draw on completed work that is PAID in full. 

I think the dollar amount would depend on how much time it would take to complete the work.

@Zeni Kharel you're on the right track.

Some investors wait months for bank approvals, while others line up funding in a week or less.

Forced appreciation (like adding a bedroom) is a great strategy but always run the numbers to ensure cash flow remains positive.Team first or later: You don’t need the entire team in place before looking, but having at least a lender and inspector lined up can save headaches when you find a property.Financing: First-time investors often start with conventional loans or FHA if house hacking, then leverage equity for BRRRR deals later.Landlord/Tenant laws: Your city or state government websites are the best starting point; local REI groups can be a goldmine for practical tips.Networking & clubs: Meetup.com, BiggerPockets local forums, or even Facebook investor groups are great places to find active real estate clubs in your area. 

For those still on a current lease enforce it.5. 

Focus on creating profitable deals. 

I even had one trigger just from heat (not humidity) in a vacant second floor unit in the middle of the summer.My solution has been to ensure those conditions are not created in these spaces, whether than means opening a window in the basement and using a box fan in the summer, or cracking open leeward windows on the second floor (in a manner to prevent water intrusion during heavy rain) on opposite ends of the building to create a bit of airflow in the summer.Lastly, I'll throw this out there in the category of "trust, but verify" - are you absolutely sure this is not tenant caused? 

Looking for advice on how to really calculate my return on equity on my rentals and if/what kind of program I can use to run different scenarios on investments to maximize the return on that equity.