Tenants would pay their pro rata share of the expenses regardless.

Pro rata based on square footage is common.

Generally you'd allocate purchase price pro-rata according to the improvements percentage per the buy/sell appraisal or the county tax assessor's figures. 

If cash and capital gains are mixed then it gives rise to a pro rata treatment for tax benefits.For example if an investor invested $500k capital gains and $500k cash into a QOZ fund (and received stock) only 50% of the appreciation on the stock after 10 years would be tax free as only 50% of the initial investment was capital gains.The form to self-certify as an OZ fund has yet to be released by the IRS.If you have already invested cash into a QOZ for the tax benefits I would highly recommend you speak with a specialized real estate CPA who is well versed in QOZ's.

As far as splitting the utilities goes if you live in it for a year or 2 you will have historical data for how much it all costs and you can either build it into the rent or charge a pro rata share to each tenant each month.

Petitioner testified that the lessee, Economopoulos, pointed out to her a dead rat, a bee's nest, and several leaks during her single visit, yet petitioner presented no evidence that she attempted to remedy these problems during her period of ownership.

It is my experience and track record that convinced the lender to make the loan in the first place, but that doesn't mean that I should get 80% of the deal.  30% to 50%, yes, but 80%, no way...unless I contributed enough capital to cause my pro-rata investor share plus my sponsor promote to calculate up to 80%. 

You take half and distribute the other half to your investor pool on a pro rata basis.

., 40% of all the remaining profit), while investors receive the rest of what’s left pro rata.

I also do the pro-rata allocation like others for general items not attributed to one property.