Hi @Michelle Franco
Matt said it right. Some other things to consider is buying the house right. Meaning older homes usually 12-15 years generally have a nice amount of equity in them considering it hasn't been used up by the previous owners in the form of second mortgages, etc.
Depending if you have equity in the home you should be able to get a home equity loan or a home equity line of credit. Depending on the lender they will usually on lend 70-80 percent of the loan-to-value.
The pros and cons depend on your strategy, i.e., buy and hold, rehab and flip, etc. I would recommend you looking up the BRRRR strategy on the forums. It means Buy Rehab Rent Refinance and Repeat. Also, you should start building relationships with local banks, staying away from large national banks, and try to inquire exactly what you need to get the ball rolling and ask them any specific questions you may have in regards to financing for real estate investing. The Branch manager may be a good person to start and should be able to put you in contact with someone in the bank who is familiar with these matters.
Good luck!