The Homeowners Insurance will include Builder's Risk.

Their contribution depends on factors like local demand for ADUs, their design and size, and how they’re used (e.g., rental income potential).

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

I'd also look into property taxes and what is included with that $800 condo fee (that is really high though guessing it may include weekly cleaning). 

Terms such as interest rates and payment schedules are typically negotiable.Combining creative financing with seller financing can include strategies like:Subject-to and Seller Financing: Taking over the seller's mortgage and financing the equity portion through the seller.Lease Option: Renting with an option to buy while negotiating seller financing for part of the purchase.Wraparound Mortgage: Keeping the seller's existing loan while they finance a new loan that includes the balance.To proceed, consider connecting with experienced investors, understanding local legal implications, and attending networking events to gather insights.

And that’s before factoring in selling costs—commissions, taxes, and closing expenses.

If we include investments in mortgage loans (trust deeds), real estate partnerships, REITs as well as direct property ownership, I’m at about 80%.  

I know that interest on the acquisition loan can be included in the cost basis since it’s inventory.

Do everything right: To include but not limited to pro photos, professional quality design, durable furnishings.  

There are plenty of older homes on the market that do not have closets.You need 2 egresses (including 1 that goes outside) such as a door or window, size about 70sqft (local codes may differ), ceilings at least 7ft high, and it cannot be a walk-through passage.As always, your local codes may be different.