Buying investment property in cash, and then do refinance

[Jain P.]

Do we lose tax benefits when buying investment property in cash, and then doing refinance?

Does the 90-day rule for refinance after cash-acquistion, apply for investment properties?

Otherwise, does the cash investment buyer, lose on tax deduction, as once he refinances, the cash he gets doesn't get deduction, unless he use it to buy another investment property.

Am i missing something here?