how many mortgages can 1 person have?

[Rochelle Wilkinson]

I have 2 questions but will post 2 threads.. first question.. how many mortgages will banks give to 1 person? I read somewhere that 10 was the magic number and then you have to move over to a lender who does portfolio lending and puts you in 15 year ARM's as opposed to 30 year fixed.. is this true? i am in Baltimore Maryland.. its all part of a grand plan that includes 10 + properties and I'm wondering about logistics..