Michelle, thank you very much. Good morning, everyone, and thank you for participating in our fourth quarter 2023 earnings call. On today's call with me are, George Johnstone our Executive Vice President of Operations; Dan Palazzo, our Senior Vice President and Chief Accounting Officer; and Tom Wirth, our Executive Vice President and Chief Financial Officer. Prior to beginning, certain information that will be discussed during our call may constitute forward-looking statements within the meaning of the federal securities law. Although, we believe estimates reflected in these statements are based on reasonable assumptions, we cannot give assurance that the anticipated results will be achieved. For further information on factors that could impact our anticipated results, please reference our press release, as well as our most recent annual and quarterly reports that we filed with the SEC. First and foremost, we hope that you and yours are well and are looking forward to a successful and ever-improving 2024. During our prepared comments, we'll briefly review our fourth quarter results and then spend time to outline the key assumptions of our 2024 business plan. After that Dan, Tom, George and I will be available to answer any questions. And looking at 2023, we posted fourth quarter FFO of $0.27 per share and full year FFO of $1.15 per share. Our combined leasing activity for the quarter totaled 550,000 square feet. During the quarter we exited 240,000 square feet of leases, including 66,000 square feet of new leases in our wholly-owned portfolio. In our joint venture portfolios, we achieved 312,000 square feet of lease executions, including 140,000 square feet of new leasing activity. Our quarterly rental rate mark-to-market was 13.4% on a GAAP basis and 7.5% on a cash basis. Our full year mark-to-market was 13.5% on a GAAP basis, which outperformed our business plan and our full year cash mark-to-market was at 4.8% within our range. We ended the quarter 88% occupied and 89.6% leased, a 100 basis points below our previously announced targets. That occupancy and lease percentage was lower due to two things. We anticipated December move-ins that slid until January. That was about 50 basis points of that change. And the anticipated portfolio sale that we had under agreement did not come to fruition. That was on an underleased portfolio and that impacted our occupancy by 50 basis points. On the other hand, occupancy in our core markets of Philadelphia, CBD, University City, the Pennsylvania suburbs and Austin, which comprised 93% of our NOI or 89% occupied and 91% leased. In looking just at our PA urban and suburban operations, we are 93% leased. As we highlighted in our supplemental package on page 4, eight of our wholly-owned properties comprise over 50% of our overall vacancy, impacting our occupancy numbers by almost 500 basis points. Plans are well underway to address each of these projects, ranging from accelerated leasing and capital investment programs as well as continuing to explore sale and conversion opportunities. Our 2023 spec revenue was $17.1 million in -- at the bottom end of our range. The metric was at the lower end of this range due solely to lower leasing volumes in our Austin Texas operation. The operating portfolio does remain in solid shape. Our forward rollover exposure through 2024 is now an average of 6.4% and through 2026, an average of 6.2%. Several points to amplify in -- green shoots if you will. The increase in physical tours has been very encouraging. Fourth quarter physical tours exceeded third quarter towards by 54%, exceeding our trailing fourth quarter average by 55% or over 200,000 square feet per quarter. And also, our tour activity remains above pre-pandemic levels by 42%. On a wholly-owned basis, 55% of our new leasing activity was a result of a flight to quality. Tenant expansions continue to outweigh tenant contractions and our total leasing pipeline is up for the third consecutive quarter and stands at 4.2 million square feet. That pipeline is broken down between two million square feet in our wholly-owned portfolio, which is up 300,000 square feet from last quarter. Then we have 2.2 million square feet on our development projects, which is up 150,000 square feet from last quarter. The two million square feet in our existing portfolio pipeline, includes approximately 250,000 square feet in advanced stages of lease negotiations and also about 41% of our operating portfolio and new deal pipeline are prospects looking to move up the quality curve. So while the timeline for lease execution remains more protracted than we would like, tour velocity and the composition of those tours, which as you know is the starting point for the leasing cycle continues to improve. In terms of staging through the portfolio, proposals that we have outstanding are up 200,000 square feet quarter-over-quarter and leases and negotiations were up 170,000 square feet from last quarter. Turning to the balance sheet. Our year-end net debt-to-EBITDA was 7.5 times, which is up by 0.1 point from the third quarter, primarily due to our delay in anticipated reduction in debt attribution from our unconsolidated joint ventures, asset sales being below our 2023 target and a slight increase in our development and redevelopment spend. As a counterbalance to that, our core EBITDA metric, which excludes joint venture debt attribution and development and redevelopment spend ended the year at 6.3 times within our targeted range. Looking at liquidity. On the liquidity front, controlled capital spending and our refinancing efforts have enabled us to maintain excellent liquidity as we closed out 2023 and look forward to 2024. For 2023, we achieved our goal of having full availability on our $600 million unsecured line of credit. We also closed the year with approximately $58 million of unrestricted cash on hand. More importantly as noted on page 13 of our SIP based on our 2024 business plan, we expect to have full availability on our line of credit at year-end 2024. During the quarter, we also bought back $10 million of our 2024 unsecured bonds at a slight discount. We did complete $25 million of sales during the quarter. We did end the year about $78 million of sales, which was below our business plan range. While we received good investor interest, the lack of attractive lender financing resulted in pricing levels below our expectations. And given our strong liquidity position, we decided to postpone several sales until market conditions improve. As Tom will touch on our consolidated debt is 96% fixed at a 5.1% rate. We do continue to assess our options to refinance our 2024 bond maturities. We're evaluating a secured mortgage financing on several of our properties or an unsecured offering. We expect to finalize that plan in the next 90 days and our 2024 business plan does assume this refinancing occurs by 6/30 2024 at a mid-8% interest rate. As noted on page 38 of our SIP, we do have four operating joint ventures with loan maturities during the first half of 2024. Our ownership stake in those ventures ranges between 15% to 50%. All of these loans are secured solely by the real estate and are non-recourse with no obligation for either our partner or Brandywine to fund any additional money. That being said, we do believe these ventures present a valuable opportunity as the debt and real estate markets recover. As such along with our partners, we are engaged in productive conversations with each lender. And while these discussions are progressing slower than we originally anticipated, we do expect the full resolution on each of these ventures within the next 90 to 120 days. And given the nature of those discussions, we still do anticipate our overall joint venture debt attribution will be reduced by over $100 million. Looking at our dividend we closed out the 2023 with full year FFO and CAD payout ratios well covered at 63% and 80% respectively. As we noted in our supplemental package, we did record impairment charges totaling $151 million during the fourth quarter. That wholly-owned impairment charge is really based on several assets located in our D.C. operation, really representing shorter-hold periods which is evidence of our intention to sell those assets as soon as permitted by market conditions. And then given certainly the unresolved loan renegotiation status on several of our unconsolidated operating joint ventures, we are recognized the impairment on several of those ventures on assets located in Virginia, Maryland and suburban Pennsylvania. Looking at our 2024 business plan. We are providing 2024 guidance with an FFO range of $0.90 to $1 per share with a midpoint of $0.95 per share. The primary drivers of this guidance is additional interest expense equal to $0.15 per share, represents the full impact of refinancing done in 2023 both on our consolidated and our joint ventures and the anticipated refinancing of our $350 million 2024 bonds. We will also with our -- two of our residential projects entering the lease-up phase, we will recognize charges against earnings of $0.05 a share during 2024. That's really based on as you know as once residential projects are delivered capitalization ceases and we'll be recognizing those operating carry losses during the lease-up. There were several other items including onetime items in 2023 we don't expect to occur in 2024, slightly higher G&A expenses offset by additional land sales and other items that comprised the remaining $0.01. And looking at the operating metrics, our 2024 GAAP NOI will approximate 2023 levels. The -- our core portfolio year-end occupancy is expected to remain flat year-over-year. We do have several known move-outs during the year. So our average occupancy during 2024 will be slightly below our average occupancy in 2023. Our cash mark-to-market range will be between 0% and 2%. GAAP market -- mark-to-market range will be between 11% and 13%. While the cash range is lower than our 2023 levels, it is driven purely by the regional composition of our projected 2024 leasing activity. Our mark-to-market in CBD and University City and the Pennsylvania suburbs will perform above our business plan range, while Austin will be below that targeted range. We do expect spec revenue will range between $24 million and $25 million which is up 43% from 2023 levels. We are currently $19 million or 79% at the midpoint achieved. That midpoint level is above our historical averages and we believe that puts our operating plan in excellent shape looking at the current year. Occupancy levels of between 87% and 88%. Lease levels will be between 88% and 89%. Retention will be impacted by a couple of move-outs during the year and we targeted a range -- an improvement over 2023, but still in the 51% to 53% range. Same-store cash NOI growth will be 1% to 3%. We anticipate it being between negative 1% and 1% on a GAAP basis. Capital control will remain a key focus point and we anticipate that our capital spend as a percentage of lease revenues will be about 12%, slightly above our 2023 result. Based on increased 2024 leasing activity, the continued development and redevelopment spend, we do project our net debt-to-EBITDA to be in the 7.5x to 7.8x range. We do -- the $0.60 per share dividend will represent a 63% payout ratio and a 92% CAD payout ratio at the business plan midpoint. Our business plan does project $80 million to $100 million of sales activities to occur in Q4 with minimal dilution. And while that CAD ratio is slightly above the 2023 levels, it is well covered particularly as additional development revenue comes online. Looking at some financing, certainly with a more favorable tone to the interest rate financing climate, we do expect investment sales market to improve as the year progresses. As such we do plan to have a number of assets in the market for price discovery and have built $80 million to $100 million of sales into our capital plan, with again as I just mentioned, those sales occurring primarily in the fourth quarter. We are targeting sales in the Met D.C. and Pennsylvania suburban markets. We also anticipate continuing to sell non-core land parcels. In looking at our developments, as noted earlier, our development leasing pipeline stands at 2.2 million square feet. That's up 5% from last quarter. While we only executed several leases during the quarter, we did see the pipeline of that -- I'm sorry, we did see the status of that pipeline advance. As of now, we have about 120,000 square feet of leasing under early negotiations 800,000 square feet of proposals outstanding, and 240,000 square feet of space undergoing test fits. Tour velocity does continue to pick up. Our objective is certainly to get our prospects across the finish line, while continuing to build that pipeline. We opened 2024 with the commercial components of One Uptown and 3025 JFK delivered. So we do anticipate activity levels to continue to increase. However, given the length of time to complete space plans, obtain permits and then construct the space, our 2024 financial plan does not include any spec revenue coming from these two projects. To accelerate revenue recognition, we are building one to two floors of spec suites in each building that will be completed by midyear. When we take a look at our total development pipeline from a cost standpoint that pipeline is 31% residential, 41% life science and 28% office. As we noted in the supplemental package, our remaining funding obligation on this entire pipeline is only $11 million. And looking at specific projects 3025 JFK, which is our residential office life science tower, as I mentioned delivered late Q4 2023 on the commercial component we're currently 15% leased with an active pipeline totaling 770,000 square feet, which is up 88,000 square feet from last quarter, the delivery of the additional residential units continues with a balanced phasing in over the next quarter. Activity levels remain good, tours are occurring daily, and we currently have 83 leases executed for about 25% of the project, and 73% of those leases have taken occupancy. We do project the residential component of that project will be between 80% and 85% leased by year-end 2024. And looking at 3151 Market our 440,000 square foot life science building. That is again on schedule and on budget. The building is scheduled for delivery in very late Q2 2024. We have a pipeline totaling 357,000 square feet with about 120,000 square feet in early lease negotiations and 90,000 square feet at the proposal stage, so a good advancement of that pipeline in the last quarter. We do continue to seek a construction loan in the 55% loan-to-cost range and expect that to close sometime by mid-year. Looking at our Texas projects. Uptown ATX Block A construction is also on time and on budget. Our leasing pipeline there includes a mix of prospects ranging from 5,000 to 200,000 square feet. We did commence a floor of spec suites and during the quarter executed a 12,000 square foot lease. We are also proceeding on building out an additional four spec suites. The multifamily component of 341 units will begin phasing in during the third quarter of 2024 and we anticipate that residential component will be 50% leased by the end of 2024. Our next phase of B+labs expansion on the ninth floor is now complete. That is also 100% occupied. We have now shifted focus and commenced construction on the 8th floor of 27,000 square feet and we have three active prospects in the very advanced stages of lease negotiation there as well. So with that, I'll now turn the presentation over to Tom to provide an overview of our financial results.