"We are always thinking about how we can better support landlords with a more flexible, innovative range of solutions."
The lender has also introduced two new 7% arrangement fee products to its specialist range to allow landlords to achieve higher levels of leverage.
This includes a 5.49% five-year fix at 65% LTV and a 5.59% five year fix at 75% LTV available on loans of up to £2m.
Meanwhile, Keystone has reduced rates on its standard and specialist five-year products by 0.20% and rates now start from 5.19%.
Both its expat and holiday let products have also been cut by 0.20%, while its two and five-year product transfer rates have come down by up to 0.35%.
The biggest reductions are on its Switch & Fix products with both its two and five-year rates reducing by up to 0.40%.
Elise Coole, managing director at Keystone Property Finance, said: “The improved market outlook means that we are able to make significant rate cuts for the second consecutive week.
“We have always insisted that, when conditions allow, we will move quickly to reduce rates wherever possible and ensure we are offering brokers the most competitive prices we can.
“On top of that, we are always thinking about how we can better support landlords with a more flexible, innovative range of solutions.
“This has led us to introduce two new 7% arrangement fee options on our specialist range, which are designed to give landlords greater autonomy over how they structure and manage their loans.
“Everyday we are talking and listening to brokers and looking at ways to tailor products to meet their requirements. If we continue to follow that approach, then we know we are also serving the best interests of the UK’s landlords.”