If I were to purchase an Airstream to use as lodging while I travel across the US to my rental properties, make repairs, and perform lease turnovers, would I be able to not only deduct fuel and campground costs but also depreciate the purchase price across 5 years? 

So, the extra unit may cost you more then it brings if you cannot access equity or if the market discounts the property when you go to sell due to financing available.

John said no, that our offer wasn't going to cover the design work and I asked him what the cost of the design work is.

It would cost me only $2300 per month which includes rent utilities furnishing and property management. she showed me one example only of a customer who profited greatly.

OR feel free to PM and we can talk. 

He even chatted with me through this forum (Bigger Pockets) and was very encouraging that you can even do it just with free stuff out there.  

But I understand where I’m at now, and am willing to work for free until I can provide such value.A little about me.

Feel free to email me if you get any info on this moving forward.

Another effective strategy I use is a "Book 2 midweek nights, get the 3rd free" deal.

My budget is in the $200-250K range.Please feel free to let me know if additional details would help, and thank you in advance for your time and advice!