I assumed all buildings in MA were smoke free.I called the prior management/HOA and they essentially told me I have no recourse even though it lead to my tenants leaving my rental.Any advice on action I can move forward with would be appreciated.

Also, based on location and size, I'm assuming the purchase is well under the $1.5mm threshold for FinCen, so the SCorp members wouldn't have to reveal themselves, although I doubt they're trying to hide their identity like some foreign billionaire or something.

(approximately 75%), the most you would be able to cash out would be for $150K x .75 = $112.5K (assuming you bought with cash). 

I don't know what your brokers underwriting guidelines were that did not allow the financing, but I would assume it was around the mobile home. 

Those are more passive type returns (assuming you're an LP). 

The reputable RV parks that do allow short term rentals, charge a management fee to manage the site since it is assumed you (the owner) are not going to be there very often.

Asking Price: $125,000Gross Scheduled Income: $15,900/yearLess 5% Vacancy: $795 Operating Income: $15,105Less Operating Expenses: $7,630Insurance (1% of purchase price): $1,250Property Taxes: $815Management Fees (10% of scheduled income): $1,590Repairs and Maintenance (5%): $795CapEx (10%): $1,590Misc. (10%): $1,590Net Operating Income: $7,475Less Debt Service: $681/month, $8,172/year (assuming a 5% down payment on a 4.5% mortgage, with .8% PMI)Cash Flow: -$58/month, -$697/year

I would assume that it's not convenient for them to own these properties as:1.

I am assuming I am paid off if the property owner gets current on their taxes or if the city forecloses on the property?

I would never assume that you would leave a property that needs work as is even if the tenant is okay with it.