The lender confirmed that Natas, now 75, has retired and left the firm earlier this week.
Advisers can input a client’s existing deal or a recommended first charge deal and then compare either to the second charge options on offer.
New buy-to-let lending reached £823.6m compared to £446.2m at the half-year point in 2015.
Buy-to-let sales have dropped by a third (-£1.3bn) from February’s high as new stamp duty rates take their toll on the market.
Brokers will now be able to access Kensington’s 90% loan-to-value residential semi-exclusive 2 and 3-year fixed rates.
This marks a shift in behaviour from recent months and is also a drop 6% from April last year.
The company’s team has grown rapidly in the last year from 30 to 100 employees.
Specialist lender Together has appointed Colin Kersley to its retail board as an independent non-executive director.
With a no cross-selling agreement in place, advisers can deal with all of their clients’ financial needs safe in the knowledge that nobody will poach that client and they will earn 30% of any commission on that product.