You need to make sure these people are paying on time if not charging them fees, and getting them back on track.

As a Stessa Pro member, I rely heavily on its features to manage my properties, and while sending over the tax package reports works well (since the Income Statement and Balance Sheet are standard for most accountants), my bigger challenge has been finding a real estate-savvy CPA who doesn’t charge more than my annual cash flow for their services!

Charging only $800 for $1200 market rent is no different to pulling out your wallet each month and handing them 4x $100 bills.

If we go with the second option and offer seller financing for the equity what interest rate should we charge and how would we go about setting that up?

Often times you don't need all the bells and whistles they are more then happy to set up for you (and charge you along the way) 

They would like to keep the timeshare as they are reaching a point where they want to take more frequent vacations and it would help cover the cost of those trips.

Why add more people and not charge more for it?

There is not a difference between the charge for sec 8 or cash tenant.

Key differentiators include storage space (attic or large closets), EV charging, and accessible backyards (not just an entry from the bedroom).3) Liya Mo - BTR REITS are trading at a premium to MultiFamily REITS, largely due to more exit strategies.

Bottom line is you have to have a solid grip on what properties rent for in your market - not only direct comps to what you have but also what's above and below you, because tenants can and will move based on affordability both ways ("downsizing" to save money or "upsizing" because an extra $50/100 gets them a much nicer place).Once you intimately know what your market is, and what's available, you can compare what you are charging to those figures and adjust accordingly.