Either they're a good tenant or they aren't.I don't know if this qualifies as bad advice because I think it would greatly depend on your local/state laws, but if you're planning on doing this you might want to consult with a lawyer first, too.

Not sure if this applies to you but if you are planning on building lots of units it could be a natural fit. 

I am not living in the US, I am living in Germany and not planning to migrate to the US.How can I solve this issue?

With things like the ONE Linden plan in Linden, which is a 50M plan to improve the neighborhood.

Take this 💥just-closed renovated property for example💥:With my query of "22757 Charlemont Pl, Woodland Hills, CA 91364 5/4/2400-3050,0.6,300" we get an ARV Estimate that is ~4% off, and I picked this at random just scrolling through recently closed in my areaAnd the Market Stats $/sf of renovated property in that Zip Code matches up pretty well, so I know the ARV estimate is realistic:You can also run Agent Stats to find/get in touch with the real top-agents in that area so you can triple-verify everything and/or list it with them when you are done.With the above, I am able to quickly vet every new deal that comes my way and spend more time on the good ones.

Their 1 year lease end Oct 31st, even if they are able to keep paying rent, albiet late, should I plan to let them know I wont be renewing their lease at the end of the term?

@Ken LivingstonRule number one for maximizing your income in real estate  is to not spend money that doesn’t earn you money unless you have to.  

Just as a preface, I have done many large developments, lots of SFR, master planned communities, etc.

In the US, for Conventional loans, we can sometimes get the borrower on a payment plan and treat the plan as debt for DTI as long as certain conditions are met.

Lenders do not need to know your future plans.