This reduces the time it takes for the funds to clear the Client Trust Account and for this reason, the only usually gets their money as regularly scheduled. 

Submetering seems reasonable, as the price isn't too terrible, but then I'd have to have the property manager bill them regularly, and at the end of the day, if they do not pay it, then I am still overall responsible for paying it.

Rent and condo fees (if applicable ) are regular, insurance and property taxes are once a year, repairs are random and (hopefully) infrequent.

Make sure to have clear documentation of regular, on time rent payments and the agreement clearly laid out.

But then you mention fins so that suggests a regular window.

When I managed properties the owner would regularly call me in his office.... why did we spend $1/sqft to paint this apartment, why did we replace a fridge, what does it cost $2500 to do a simple make-ready on a 1 bedroom luxury apartment?

He used to be a regular contributer on the BP forums.

When purchasing your mother-in-law's house through seller financing, since the property qualifies as her primary residence, she should be able to exclude up to $250,000 of gains ($500,000 if married) from taxable income, so capital gains taxes are unlikely to be an issue given the sale price is below the tax basis.2.

In a loose sense, I would call any lender a "partner" too, since they will require not only your monthly payments, and will require regular reporting as well on the operations of the property (but this is a more semantic and philosophical discussion).But, ways you can try to come up with that money: refi your home and/or investment properties.  

Can Only a PART of paid OPTION Consideration Funds be NON Taxable ?