One of my mentors picked up their first major property with owner financing while searching for potential deals to assign, then chose to rent out the 3bed out as 3 student housings.Can't guarantee it would work in your situation, but it might be worth considering, at least.

After 6 months of a 12 month lease the person decides to give a 30 day notice with the excuse that the building department says it was last known as residential and would need zoning hearings which could take 4 months with no guarantee.  

We did find another lender willing to do a 15 year fixed rate loan at 3.75% but requires the Buyer to be an LLC, put a minimum down payment of 25% and provide a personal guarantee.

You'll likely be providing a personal guarantee, anyway, in your business's early days.I have a mentor who teaches building business credit.

Another aspect of business entities that a lot of folks miss is that business entities can get their own credit, separate from your personal credit, though you may need to provide a personal guarantee when your entity is young.Lenders, creditors, etc. like to see businesses be at least two years old for better lending / credit terms.

, but alone is not enough.Education + Drive + action = highest probability of success.If you're looking for guarantees, I have bad news for you: there are none to be bought or sold.

And it is possible to use leverage for such purchase, but the loan has to be non-recourse (conventional financing will not work since you as disqualified person are prohibited from providing personal guarantee). 

They offer a 30 day money back guarantee and I'd like to get a refund but one of the requirements is a "UNINSTALL CODE" Does anyone know what this is or how to get it?

Would any mortgage lender allow an already existing corporation purchase the property with a personal guarantee from my self and my business partner?

The longer your entity exists the sooner it can start getting its own credit separate from yours, even though you may have to guarantee that credit when your entity is young.