I've purchased four properties utilizing Roofstock and maintain my own thread here on Bigger Pockets about my experiences with them and updates on the properties I've purchased through them. 

In Costa Rica, property condition is a constant variable, far more critical to maintain than the USA. 

If can't transfer the rental into LLC and there are compliance costs associated with maintaining it you might consider shutting it down.

Banks, particularly smaller banks who provide real estate loans are increasingly focused on their borrowers maintaining depository relationships.

I actively put forth effort to maintain leverage.

These kinds of foundations need to be maintained over the years.

Knowledge is power:Thorough Inspections: Minimize surprises with detailed inspections and due diligence.Strong Screening: Careful tenant selection reduces vacancy and headaches.Diversification: Spread your investments across different locations and property types to mitigate risk.Financial Planning: Maintain a buffer and choose financing options that fit your long-term goals.

I too live in Marin, and feel it is a solid long term market for apprecaition, and utilizing the power of principle reduction.When it comes to refinancing, figure out what the loan costs will be, then divide that buy the monthly savings with the new loan in order to determine how long you have to maintain that loan to break even. 

OTA rewards hosts who maintain high occupancy rate on its platform over other hosts who spreads out to many other OTAs.

This allows them to get more capital so they can make more loans without having to grow their asset base, while also maintaining their relationship with the customer through monthly payments.