I suggest like one of those Canadian get-aways where it's awesome fishing, water sports, and no internet or cell reception. 

I thought I was overcharged for my rehabs, especially because I didn’t have a solid process for oversight in place initially.I ended up having my property manager oversee the rehab projects, which helped but came at an extra cost—around 10% of the total rehab budget.

Also, how much time do you want to spend doing real estate vs. your main job or extra work in order to fund it.

It needs to be permitted to be qualified as an extra bed room.

If you don't intend to do that right away then do the 20% and save the extra cash flow.

-Booking.com is a very large and established company that has been around much longer than airbnb and vrboCons:-more listings to make sure are all staying maintained assuming you are also on airbnb and vrbo-you have to pay them their commission back at the end of each month which is a pain in the a** and is an unnecessary extra step-payouts can take longer as you mentioned-it has been impossible for me to find anyway to contact customer service over the phone and instead you have to refer to their forums and FAQs for any answers you need.Hope you found this helpful.

They will promise upgraded furniture or extras to keep your money. 

Everyone wants to provide for their family, not just you.One day if you earn more money, you will have extra to help others in need.

Well, STR can work well for people who own a vacation house for personal use, and just want to generate some extra income when not in use.  

If you have extra cash at the end of the month, then do double up payments on the mortgages so the principle is reduced and this will increase your heloc room.