You will need to legally follow WA law, though the moratorium ended in June you have no idea if tenants will cooperate or if you have to spend a year in court. 

Even if you took him to court, you'd lose.

The cleaner was a huge cut to proceeds.

Option 1) If I evict, it'll cost me court fees and agent/property mgmt. representation.

I heard we can buy from developers or builders directly.Not sure whom to contact.Appreciate if you can share some insights on how to proceed, whom to contact ,where to look for ?

If they don't, then you can enforce the original rent due, only after they refuse to pay that and you provide additional notice to 'pay or quit' THEN you can go to court for an a failure to pay the agreed rent and have the judge rule on the situation.

Each renovation project ran between $4-$6k with a total of $18+k of improvements.Original purchase price: $199kDown payment: $6kInvestment: $19kNOI (11/2019 - 09/2021): $9kSales Proceeds: $67kTotal Investment: $25kTotal NOI: $76kROI: ($76,000-$25,000)/$25,000 = 204%Now, I am using this return to invest in a bigger project.

Original purchase price: $199kDown payment: $6kInvestment: $19kTotal Investment: $25kNOI (11/2019 - 09/2021): $9kSales Proceeds: $67kTotal NOI: $76kROI: ($76,000-$25,000)/$25,000 = 204%Now, I am using this return to invest in a bigger project.

I have a holdover tenant I'm taking to court next month, and they are counter-suing me for rent escrow.

Ohio has no laws, but there is court precedent that if latent defects are coupled with concealment or misrepresentation it voids caveat emptor and opens the seller to risk of fraud.