I recently found a REO property for bid, which says "REO Occupied - the seller does not represent or guarantee occupancy status.

So if I am able to get it built in 6 months or less and then get the units rented prior to the finish date (have them move in when finished of course) and then show full occupancy for 6 months, my plan was to get conventional financing to get the PM paid back and have a LTV around 75%.

This makes a big difference, if you rent right now and can purchase a property that is cash flow neutral with 75% occupancy then you are coming out ahead.Short term appreciation plays are becoming big again.

What do they see them selling for per unit, what is the market occupancy rate.

Realtors and lenders will know.All of these have occupancy requirements, not for investment properties, initially. :)

Not necessarily an easy task unless you have two-like kind properties, virtually next to each other, one with solar and one without with similar occupancies.

You need to make sure they assume the same responsibilities as well by engaging with them to either comply with your screening process and be added to the rental agreement as jointly and severally liable, or move on.Also, when handling the security deposit, remind all the tenants that the security deposit stays with the account and will not be touched until the end of occupancy when all parties move-out and return possession of the unit back to you.

However, future occupants are unlikely to be handicapped.

There are areas in some of the college towns I am familiar with that are grandfathered in as being zoned for more occupants. 

With few exceptions, only one year of ownership and/or occupancy does not qualify for the capital gains exclusion.