There are two products that I know of one is called Super Seal and the alternative is a competing product called AC Leak Freeze that we used in this particular case.  

@Diana Mulvihill everyone's answers make it sound so eacy, but they mist the most important part - finding contractors that are competent and that you can trust!

No matter what market you select, you need to spend a lot of time there getting to know the market and the “players” in that market.Which of these markets can you get to easily and often?

Can anyone recommend a  competent, honest PM company that can get it leased to a good tenant?

If you took the top 3 players to lunch or dinner quarterly, you'd spend a lot less yet gain a lot of knowledge.

It has been hard finding a place that 1) Doesn't get bid up by cash buyers that we can't compete with 2) Doesn't have 10's of thousands of capex out the gate3) Is in an area that I'd grade as C+ or better.

Yes, subs may not always think you're competent and quote accordingly and others will bend over backwards and do little things, without charging, because you're a woman. 

We had a list of preferred real estate agents we listed our stuff with to get fair market (maximum) sales price.If we wanted to dump a property below market value, we knew who the players were and would contact them discreetly - we didn't want any negative publicity.Unless you find a desperate, failing lender, don't see you having much success.

I don't know if you're aware but luxury hotel rooms are often super cheap in that country so I'm not sure how you'd compete and make any decent income.

Ironically it's much more difficult to buy a quality asset than a cheap duplex, as you are competing with other experienced investors and it may take more time.