See what the security deposits are, you are entitled to them. sSe when the leases expire, you cannot raise the rent until it is time to renew the lease. 

For perspective, from 2015 to 2019, active inventory regularly exceeded 2,000–2,500 homes during peak months.

To clarify, my grandparents are the primary owners of the home, and years ago, they helped my parents secure and maintain it.

You could send him to a collection agency for the amount owed after you deduct the security deposit.

I have been reminding them regularly about rent payments through the rental property management app. thank you so much for your support  eviction is a hassle but typically renters are like leopards where they do not change their spots...

Maintain regular communication — Stay in touch with all parties, including the title company.

The key sign you're close is when you can confidently run the numbers on a deal (rent, expenses, cash flow) and know what makes it a good one for you.Start by analyzing real deals regularly, even if you’re not ready to buy.

(Which is going to be 2-5x higher than regular insurance which is not the servicers fault its what insurance companies charge and servicers do not own insurance companies). 

Who is typically responsible for regular HVAC maintenance (spring and fall)? 

I regularly contract properties each month.