What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

If the students do not have the income or credit to warrant the rent amount, I would require that they get a cosigner (like a parent or another relative that can vouch for them).

This also includes a few credit cards that are used for business expenses.

I ran some quick numbers and would estimate (assuming you have good credit) you could borrow around $415k-$420k, which includes funding 100% of the rehab costs.Have you calculated your expected profit based on selling after rehab and if you decide to keep long term? 

FHA is only really the better option for poor credit - otherwise a 5% down conventional loan is cheaper and less stringent.

Even worse is their intentional push towards the lowest of barrier properties and strategies.

Also, your DTI can sometimes be more flexible depending on your credit score or reserves, so it’s worth asking the lender about that.If your DTI is still too high, try looking at ways to lower your monthly payments or increase your rental income.

CA taxes residents on worldwide income but may provide a credit for taxes paid to other states.

I just write the property address on the receipt.I couldn't fit a different credit card for each property in my wallet.

I have taken all my taxes and insurance out of escrow, and I run them through credit cards to rack up points, so I pay a lot of bills every year.3.