Proof of Income Please

[Samuel Larger]

I am performing due diligence on my first deal and find out the seller can't/won't prove the income on the property, what now? The seller won't provide bank statements or tax returns and I am unsure to whether rent was actually collected since it was an inherited property.

My offer was accepted with no earnest money so should I cancel the contract before wasting money on an inspection?

Any help or advise would be greatly appreciated, thanks!