Your immediate sarcastic response prompted all this. 

I learned how to do many repairs myself, I showed all the homes myself, and I made it work.

There are ups and downs with any property and there will always be variables with tenants, rents, repairs etc.

Send her a certified letter (keep a copy for yourself) with your concerns of her not turning on the heat and the problems that can occur with frozen pipes and repair cost in which she will be liable for if she doesn't comply.Is she using space heaters instead?

A lot of wholesalers lock it up at 75% - repairs and then try to move it at 80% - 85% - repairs.

How much will you spend in repairs on a 1920's house with renters ? 

Build a local team for cleaning and repairs to streamline operations.

So this is mostly in reference to us doing our own repairs, not necessarily looking to hire other people.

Cash Partnership 50/50 on both the purchase and repairs.

Thank you very much for the prompt response.I will contact them soon.