You can use a calculator online to find out the principal and interest payment then just add annual taxes and insurance quote into the payment.

When I was a more active buyer, in my area I did similar deep dives into the HUD/REO markets and courthouse sale data based on Substitute Trustee filings.

In Florida and in my county, I'm looking at the follow for each LLC:- Business Tax Receipts filing every year- Home Occupation License (may or may not need this for an additional LLC)- DBPR License annually- FL State annual report- Tangible Tax filing (and this one is a B***CH)- And now the new BOIR

The cash flow is okay, it's not great, but the principal pay down on this loan is over $10k per year, and this is a great location, so the property value and rental rate will continue to appreciate over time.

Remember the 90 day rule is from the time your deed for purchase was filed until the time new sales contract is signed from what I understand. 

Once you hit those numbers, then you can focus on putting extra income towards paying down principal.

After that, think about hiring a bookkeeping firm that specializes in serving REIs.Regarding hiring a CPA/tax pro for tax advisory and/or tax filing, I'd wait until you purchase your next primary and convert your current primary into a rental.

Then, usually the mobile home parks have to do something to get rid of the home or they can file for abandonment and take back the home. 

It contains hundreds of files such as ebooks, checklists and spreadsheets for real estate investors: https://www.biggerpockets.com/filesGood luck.

low cashflow high appreciationNotes purchased in the secondary market at discount to remaining principal balance have the built in capital gain profit with potential for greater ROI thru early payoff or early PARTIAL paydown.