You can do as little as 0% down and maybe even get money back at closing if you can implement seller credits into your offer during the inspection period or prior to going in contract. 

Some lenders will let you both be on the loan and use the Higher of the credit scores between you and your credit partner. 

I have yet to be turned down for a credit card.  

If it stays beyond what's paid for either move it to a storage area on your land and keep track of storage fees or see if you can have someone tow it offsite for you and in that case they will have to pay whatever fee the tow yard charges. 

Minut seems to be less expensive, but according to Wynd's website, they say Minut's smoke monitoring is in Beta and doesn't track marijuana smoke.

I'm not sure what your local options might look like with a small community bank or a credit union. 

Keep track of them and see if any of them rent.

Look carefully at the credit card transfer checks.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

My bookkeeper (who is a new addition to my team this year) has just integrated the first of my business credit cards into Quickbooks.