It's expected and common for MTRs to have utilities included.

Heck, I had a pool replastered for $3,700 including chemicals/setup. 

They also want a priority lien on the property.It sounds like you are looking for someone to fund your down payment, I would be looking for an equity partner over debt as nobody likes to lend money in insecure positions, especially when a borrower lacks skin in the game.How much are you planning to come in with yourself?

So I require skin in the game (average is 5% to 15%) to offset this.

GP's typically have to put skin on the game.

I have purchased the following books:ABCs of Buying Rental Property The ABCs of Property Management The ABCs of Real Estate Investing The Advanced Guide to Real Estate InvestingThe Book on Investing in Real Estate wit...

So I require skin in the game (average is 5% to 15%) to offset this.

was there an agreement between you and your parents that they should share in the profits / losses of the airbnb / property.If there was an agreement, they should also be included in the LLC.It is best to discuss this all with an attorney.Best of luck!

Is it necessary to include photos of the exterior of the property for Airbnb? 

Alternatively, your sibling might use a 1031 exchange to defer taxes by reinvesting in like-kind properties, though this doesn't directly fund a primary residence.Other ideas include leveraging a HELOC on the rental properties for the down payment, taking out a 401(k) loan, structuring an owner-financed agreement, or a lease-to-own arrangement.