Technically, as long as all parties agree any arrangement is viable.

I would have a gracious conversation with this person reminding them of the contractual arrangement for rent payments and hand them a Notice To Comply with your contract so it’s in writing - and in their file!   

(I believe anyway) My partner and I are potentially factoring in the minor refit costs into the Private loan or alternatively, can't we have that put into the mortgage arrangement with the 203k refit clause?

The arrangement with the builder is that on the 1st of the month, he will send me the invoices received from the previous month from the various sub-contractors.

I LOVE taking the big guns down, turning around dropping my pink flower panties and moon them and say, eat my dust bishes!!

An IRA is an individual retirement arrangement, and quite permanent by nature. 

Are there any verbal agreements or arrangements between the current Landlord and Tenant?

Assuming you can not contact your tenant, which seems very strange, you arrange to have Animal Control present to remove the dog when you are ready to enter with your plumber.Usually what I would do is open the doors and let the animal lose.

I get why some sellers are desperate enough to cash in their chips for a discount, but not so much why they would accept lower monthly drip feed than they could arrange for themselves?

If the loan is through a specific company, can we go straight to them and arrange a mortgage that would include the remaining balance, plus the cost of repairs under one contract while also selling the house to us?