There are a lot of site-specific issues you need to investigate before deciding what the land is worth to you.

In any contract you don't typically need a clause saying what you CAN do, its assumed you can do anything legally allowed as an owner including sell.

My underwriting would have this large negative cash flow for 7 years.I would do a thorough underwriting but want to show using quick math the issue so I will use the 50% rule.  

That means there is not really an effect on the debt to income ratio neither positive (income) or negative (loss) but rather simply making that payment  non issue. 

I have struggled with the tenancy laws in Ontario (apart from cash flow issues) and hoping to diversify into a market where the laws are more balanced. 

If I had an answer to my money issue then I would quickly pull the trigger on a good deal. 

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.

I had a similr issue a few years ago with a property in Cleveland where my property manager hit the same roadblock.

It really shines a clear light onto the issue.

I'm not a CPA, no legal advice given.