You’ll want to invest in areas that have tenant interest but also aren't on the extreme end of neighborhood quality—this means avoiding the very toughest spots, where turnover can be high and managing tenants can be difficult.

I contacted the female renter and asked what was going on and she said he was living there, my lease like most leases states tenant must inform me if someone else wants to move in and cannot sublet, I always keep all my rental agreements in one spot and I don't have hers so now what do I do?

Definitely helpful.I got a lawyer who did overcharge me a bit but the tenant left the property spot clean.

But if the mortgage is 2k or 3k then I'll be in a tough spot. 

I'm Pedro, from Lisbon but I live and work in Switzerland for some years.I'm interested in RE, and I wanted to start investing in Lisbon or some spots in Algarve.I'll be in Portugal on vacations, during August.

I an afford to sit on this property as its in the Yosemite AirBnb hot spot and don't need to do anything right away as its in a killer location.

Build a solid foundation before taking a step up - each and every step of the way.There’s a way to scale recklessly and there is a way to scale safely.When OPM is involved safe is way better than reckless.Despite a life long career in RE, I scaled as followsBought a few duplexes for my own accountBought a fourplex for my own accountBought 12 units as a JV with some friendsSyndicated 43 unitsSyndicated 30 unitsBought another 12 units as a JVSyndicated 281 unitsThis was over a 3 or 4 year period.and so forth - now I am GP in close to 1000 units with $125M AUM.Even with all that, my sweet spot is 30 to 50 unit properties - they work best for my partners and I and more importantly our investors. 

If they have a 5 year lease that says "tenant may have 2 pitbulls" then you are in a hard spot and have to find insurance.

I'd try to fill at least a few spots to get some income coming in, and then do a rolling conversion to MTR as you have the cash to outfit a unit with everything an MTR needs.

As it stands now, the sweet spot in that area in the market for rent seems to be a little larger 2/2 house with large living area for guests.