Hey James, I wouldn't feel comfortable giving a guaranteed 100% answer to someone on the forums without doing my due diligence on their situation.

I had to have the visceral experience of committing to a 30 year obligation was 5 times my annual salary and then watch it work out relatively risk free (because I have to live somewhere) to feel comfortable making multiple six-figure commitments. 

There is so much interplay with other factors, that even if I looked up my old returns I am still not comfortable doing it myself. 

As an US based investor, I find certain comfort in investing in Puerto Rico, which is a US Territory, but obviously since you are comparing your investments to international investments, you may be looking at things that I am not. 

Many are concerned about downpayments (as you mentioned), yet why not get your preapproval and ask the seller if he/she is comfortable with Seller Financing the Downpayment?

Certain organizations such as the AICPA and the State board that issues the CPA license mention what a CPA can / can't do to retain his / her license.Providing a comfort letter is an 'attest service'.Furthermore, CPA firms are encouraged to have insurance, which may mention that the firm can not provide comfort letters.What the mortgage company is looking to do is potentially have another person to go after if the mortgage goes south.It is not worth it to a CPA to get a few hundred dollars but potentially get a lot more in risk exposure.

Many investors buy distressed properties because they can get a better deal and do significant rehab work, but it sounds like that it outside your comfort zone.

I think they would need to file the insurance claim if there was enough damage, but possibly they could escrow an amount you’re comfortable with if lender allows.

Fundamentally, I want a balance between an efficient, market-rate park and tenants who are happy and comfortable.

However, if the nearby high-risk area poses too great a threat to perceived safety and could potentially deter quality tenants or future buyers, it's probably too close for comfort.