Because  rents are lower, they struggle to charge a fee large enough to make it profitable.

There are some exceptions to this but this is the general rule.The $150,000 hurdle shrinks to $75,000 if you are married but filing a separate return.Creating an LLC does not suddenly bypass this.In actuality, you created another filing requirement which your CPA will charge you an extra cost for. 

I'm charging.

But if the docs give you the right to start charging default interest, force release of the lien etc that is at least some leverage, control. 

This was done to protect senior citizens on fixed incomes from being forced to sell their homes due to unaffordable property tax increases.Since the passing of this amendment, all properties in Michigan have two property tax values associated with them:State Equalized Value (SEV): supposedly equal to 50% of the market value of a property, not based on recent sales price.Taxable Value: the SEV annually capped as long as there is not a transfer of ownership.City Assessors are charged with determining how much property values have changed each year.

The right lender will be able to advise you on what options you have after getting some info from you and taking an application. 

Also, regarding the 15% you pay to Airbnb replaces the commission your guests used to have to pay to Airbnb so you should be able to charge it through your guests through your pricing.And, yes, operating short-term rentals in Mexico, while cheap compared to developed countries, is somewhat more expensive than in Colombia, Ecuador and the Dominican Republic because Mexico is more developed.

In some cases, exemptions or adjustments might apply for buyouts between co-owners, so it’s best to check directly with a local real estate attorney or tax advisor to confirm the exact tax amount and any applicable exemptions.

I did a DSCR loan once and was amazed of the BS fees which were charged. 

The standard to apply is quite simple: Did you accurately disclose the character of the down payment funds to the lender in the loan application?