did half the flip work, sold with new walls and new electric/plumbing.

Maybe an investor is flipping a lot of properties and you could offer to pick up and deliver materials to his crews, clean the work sites every night, bring his crew lunch, or whatever.Find a way to make yourself useful to them, and they will reciprocate.

The law allows you to charge for ALL cleaning, including trash removal.

:)As for LTR rental terms, usually we sign a 1 year lease where tenants are expected to pay Electric and Gas if applicable, while the owner typically pays water/sewer/trash with the city. 

RESOLVE this issue NOW and make a clean break. 

For example, we need proof of renters insurance and proof they put electricity in their name.So, it seems odd that you are accepted but they keep wanting more information. 

Electric: is the easiest to split, but may require holes cut in walls to separate the units.Gas: gas lines aren't as flexible as wires, but it can usually be done affordably.Water: most cities will NOT install additional water meters on a property.

It was a huge investment, but it cut the electricity cost by the full 2K per/mo all summer.

However, these properties generally have a lot of land improvements that qualify as well as certain portions of electrical, mechanical and plumbing that can qualify.

The limit on scaling is your deal flow (mine never was that good) and time it takes to perform the value add (I got fairly quick for example, my last rehab did all new plumbing, electrical, and flooring.