Another question you want to look in the mirror, so to speak and ask yourself is "What type of investing do you want to do..."
A long term investment with a possibility of appreciation and more stability or are you looking for a less costly option that will bring residual income but has more of a demand for an active landlord/manager. The good thing about the ladder is, if you do choose to finance it (provided you can find an institution that will finance 50k and below. You might want to also look into a personal unsecured loan or line of credit if you're credit is good) it'll be paid off sooner than a higher costing property and you can cash flow better, sooner. Example... Provided that your financial institutions offer such products, You could get an unsecured loan or line of credit for 25k @ about 9% for 1-4 or 5 years. You will have paid nothing out of pocket, kept your money for reserves and will have that borrowed money paid off in about a 4 year period. That way you cash flow better, sooner.
On the other hand you can purchase a more expensive property, have a more traditional 30 year obligation which may have decent returns and appreciation that could very well be apart of your future but true return will come in the sense of selling. Or paying off the loan about 20-30 years later, depending on if you pay the mortgage down quicker with the possible profits.
There are tons of directions to go and tons of vehicles for use to go down those directions. The main thing you want to ask yourself first is... What kind of investing are you looking to do?
Happy Investing...