It does not mean you can't write a lower offer.

Would love to connect in the future.

If your contract states the percentage you get from future bookings...usually it's 10%...take that and have the owner move all bookings to their listing.If you don't have a contract, I'm not sure what to suggest except to split ways peaceable, even if you lose money.

@Mark C. you could repurpose the LLC for something else, but given you used it in the past for your handyman service, you don't want to get blindsided in the future by a handyman related lawsuit.

I'm probably 60/40 for stocks/RE right now. 

There is money to be made and success in different strategies in RE. 

In all honesty, this rental increase in a depressed area makes me wary that future increases will be more unreasonable and more extreme, and I should "get while the gettin's good."

I'm new to RE and wholesaling.

If you are paying in cash, you'd have the bank write a letter indicating you have the capital on deposit or you can also print out your bank statement showing the funds.

I checked the lease created through Zillow that does not show up any option for reletting but what I am aware (done it few times when one of my other property was managed by a property manager) is tenant could pay reletting fees (typically one month rental) that allows property to be re-listed.