Otherwise, what if they have a substantial increase in income and lose the voucher?

Or you can create your bookstore/Shopify account to which you can see all your book purchases and download from there anytime!

It is a job for tax software and accountants.

(source)It also states this:  The following requirements must be met by taxpayers or RPEs to qualify for this safe harbor:*Separate books and records are maintained to reflect income and expenses for each rental real estate enterprise.

If your tenant is on fixed income, it may be difficult to raise rents to keep up with the market.

We have good steady W2 income and great credit scores.

You are able to get into a fix and flip loan at 30% down on the purchase and 100% of construction . no income no doc 

I would recommend LLC with its own bank account to keep expenses and income separate.

Is there a way to add my expenses to PM's end of year statements for my accountant?  

Ask them when they issue distributions (anything before the 15th of the month is a red flag), do they require reserves, how is maintenance charged, do you see copies of outside contractor bills, do they upcharge materials (PM's have LAR accounts with Lowes and often get 20% off), do they keep all late fees or just the management fee, what other fees do they charge (renewals, inspections, etc), where are tenant security deposits held, how are evictions handled and are you consulted before filing, what screenings do they run, what qualifications do they require from tenants, ask for a couple other owners to visit with for a reference.