Honestly , I have had bad experiences with PM. 

The down sides to an all concrete house is temperature retention good or bad. 

Quote from @Devin James: Quote from @Dominic Mazzarella: Quote from @Devin James: Everything went wrong with this investment:   - Took 4 months longer than expected   - Cost $10K more to build than we anticipated   - Sold for $20K less than we anticipatedWe still profited with a 30% return on equityThis is why I love Real Estate InvestingWhen you do your diligence and stay conservative with your numbers, it takes something really bad to lose money.Here was the original post:My siblings and I are building a home in North Port, FL.Here are the numbers: - Finished Home Value: $412Kish - Land Cost: $19,750.39 - Construction & Permitting Costs: $304,897Additional costs: - Environmental Site Assessment - General Liability Insurance - Builders Risk Insurance - Construction FinancingWe will be listing the home this weekPhotos coming soon!! 

Probably even more from the bad deals..Long term you are better off with better real estate.

We finally close with title insurance.14. seller is holed up  its a massive hoarder situation as bad as I have ever seen.15. another 6 months to get eviction.so about 30 months later we finally take possession and bull doze house and built three new homes.  250k in out for 30 months  another 30k in legal fees..

My opinion only 2 cases make sense for the seller 1) they have few options and this presents the best means to get out if a bad situation.  

Would it be a bad idea to buy a single family home built in mid 1930's?

Yes, there are many out there that do it and nothing bad has ever happened, and I say kudos to that, I just would never do that.

Better an empty property than a bad tenant. 

Here are some reasons: if the OTA gets too much market share that is bad for hosts and guests.